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Finding the Fourth Proportional to 713,835.73, 985,094.76 and 391,548.52

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Solution

The fourth proportional to 713,835.73, 985,094.76 and 391,548.52 is: 540,337.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,835.73 : 985,094.76 = 391,548.52 : x
  2. Step 2: Convert to fraction form
    713,835.73/985,094.76 = 391,548.52/x
  3. Step 3: Cross multiply
    713,835.73x = 985,094.76 × 391,548.52
  4. Step 4: Simplify right side
    713,835.73x = 385,712,395,337.76
  5. Step 5: Solve for x
    x = 385,712,395,337.76/713,835.73
  6. Step 6: Final answer
    x = 540,337.75

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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.