Home / 317,404-430,587

Finding the Third Proportional to 317,404 and 430,587

Calculator

Solution

The third proportional to 317,404 and 430,587 is: 584,129.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,404 : 430,587 = 430,587 : x
  2. Step 2: Convert to fraction form
    317,404/430,587 = 430,587/x
  3. Step 3: Cross multiply
    317,404x = 430,587 × 430,587
  4. Step 4: Simplify right side
    317,404x = 185,405,164,569
  5. Step 5: Solve for x
    x = 185,405,164,569/317,404
  6. Step 6: Final answer
    x = 584,129.89

Related Problems

Find third proportional to 158,702 and 215,293.50
Half scale
Find third proportional to 634,808 and 861,174
Double scale
Find third proportional to 317,406 and 430,590
Similar ratio
Find third proportional to 476,106 and 645,880.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.