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Finding the Fourth Proportional to 529,529.60, 794,294.40 and 319,059.20

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Solution

The fourth proportional to 529,529.60, 794,294.40 and 319,059.20 is: 478,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,529.60 : 794,294.40 = 319,059.20 : x
  2. Step 2: Convert to fraction form
    529,529.60/794,294.40 = 319,059.20/x
  3. Step 3: Cross multiply
    529,529.60x = 794,294.40 × 319,059.20
  4. Step 4: Simplify right side
    529,529.60x = 253,426,935,828.48
  5. Step 5: Solve for x
    x = 253,426,935,828.48/529,529.60
  6. Step 6: Final answer
    x = 478,588.80

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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.