Home / 579,432.10-870,132.30-429,841.30

Finding the Fourth Proportional to 579,432.10, 870,132.30 and 429,841.30

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Solution

The fourth proportional to 579,432.10, 870,132.30 and 429,841.30 is: 645,492.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,432.10 : 870,132.30 = 429,841.30 : x
  2. Step 2: Convert to fraction form
    579,432.10/870,132.30 = 429,841.30/x
  3. Step 3: Cross multiply
    579,432.10x = 870,132.30 × 429,841.30
  4. Step 4: Simplify right side
    579,432.10x = 374,018,799,003.99
  5. Step 5: Solve for x
    x = 374,018,799,003.99/579,432.10
  6. Step 6: Final answer
    x = 645,492.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.