Home / 787,403.10-1,086,615.99-429,707.10

Finding the Fourth Proportional to 787,403.10, 1,086,615.99 and 429,707.10

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Solution

The fourth proportional to 787,403.10, 1,086,615.99 and 429,707.10 is: 592,995.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,403.10 : 1,086,615.99 = 429,707.10 : x
  2. Step 2: Convert to fraction form
    787,403.10/1,086,615.99 = 429,707.10/x
  3. Step 3: Cross multiply
    787,403.10x = 1,086,615.99 × 429,707.10
  4. Step 4: Simplify right side
    787,403.10x = 466,926,605,876.53
  5. Step 5: Solve for x
    x = 466,926,605,876.53/787,403.10
  6. Step 6: Final answer
    x = 592,995.64

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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.