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Finding the Fourth Proportional to 557,597.52, 769,459.50 and 315,875.16

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Solution

The fourth proportional to 557,597.52, 769,459.50 and 315,875.16 is: 435,893.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,597.52 : 769,459.50 = 315,875.16 : x
  2. Step 2: Convert to fraction form
    557,597.52/769,459.50 = 315,875.16/x
  3. Step 3: Cross multiply
    557,597.52x = 769,459.50 × 315,875.16
  4. Step 4: Simplify right side
    557,597.52x = 243,053,142,676.02
  5. Step 5: Solve for x
    x = 243,053,142,676.02/557,597.52
  6. Step 6: Final answer
    x = 435,893.51

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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.