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Finding the Fourth Proportional to 557,708.04, 769,635.06 and 316,036.62

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Solution

The fourth proportional to 557,708.04, 769,635.06 and 316,036.62 is: 436,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,708.04 : 769,635.06 = 316,036.62 : x
  2. Step 2: Convert to fraction form
    557,708.04/769,635.06 = 316,036.62/x
  3. Step 3: Cross multiply
    557,708.04x = 769,635.06 × 316,036.62
  4. Step 4: Simplify right side
    557,708.04x = 243,232,862,995.90
  5. Step 5: Solve for x
    x = 243,232,862,995.90/557,708.04
  6. Step 6: Final answer
    x = 436,129.38

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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.