Home / 815,513-1,125,407.94-457,817

Finding the Fourth Proportional to 815,513, 1,125,407.94 and 457,817

Calculator

Solution

The fourth proportional to 815,513, 1,125,407.94 and 457,817 is: 631,787.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,513 : 1,125,407.94 = 457,817 : x
  2. Step 2: Convert to fraction form
    815,513/1,125,407.94 = 457,817/x
  3. Step 3: Cross multiply
    815,513x = 1,125,407.94 × 457,817
  4. Step 4: Simplify right side
    815,513x = 515,230,886,866.98
  5. Step 5: Solve for x
    x = 515,230,886,866.98/815,513
  6. Step 6: Final answer
    x = 631,787.46

Related Problems

Find fourth proportional to 407,756.50, 562,703.97 and 228,908.50
Half scale
Find fourth proportional to 1,631,026, 2,250,815.88 and 915,634
Double scale
Find fourth proportional to 815,514, 1,125,409.32 and 457,818
Similar ratio
Find fourth proportional to 1,223,269.50, 1,688,111.91 and 686,725.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.