Home / 710,139.84-979,977.80-387,851.24

Finding the Fourth Proportional to 710,139.84, 979,977.80 and 387,851.24

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Solution

The fourth proportional to 710,139.84, 979,977.80 and 387,851.24 is: 535,226.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,139.84 : 979,977.80 = 387,851.24 : x
  2. Step 2: Convert to fraction form
    710,139.84/979,977.80 = 387,851.24/x
  3. Step 3: Cross multiply
    710,139.84x = 979,977.80 × 387,851.24
  4. Step 4: Simplify right side
    710,139.84x = 380,085,598,063.33
  5. Step 5: Solve for x
    x = 380,085,598,063.33/710,139.84
  6. Step 6: Final answer
    x = 535,226.41

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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.