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Finding the Fourth Proportional to 565,006.13, 779,714.19 and 306,885.58

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Solution

The fourth proportional to 565,006.13, 779,714.19 and 306,885.58 is: 423,505.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,006.13 : 779,714.19 = 306,885.58 : x
  2. Step 2: Convert to fraction form
    565,006.13/779,714.19 = 306,885.58/x
  3. Step 3: Cross multiply
    565,006.13x = 779,714.19 × 306,885.58
  4. Step 4: Simplify right side
    565,006.13x = 239,283,039,483.10
  5. Step 5: Solve for x
    x = 239,283,039,483.10/565,006.13
  6. Step 6: Final answer
    x = 423,505.21

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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.