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Finding the Fourth Proportional to 553,720.70, 830,062.65 and 433,711.10

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Solution

The fourth proportional to 553,720.70, 830,062.65 and 433,711.10 is: 650,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,720.70 : 830,062.65 = 433,711.10 : x
  2. Step 2: Convert to fraction form
    553,720.70/830,062.65 = 433,711.10/x
  3. Step 3: Cross multiply
    553,720.70x = 830,062.65 × 433,711.10
  4. Step 4: Simplify right side
    553,720.70x = 360,007,385,000.42
  5. Step 5: Solve for x
    x = 360,007,385,000.42/553,720.70
  6. Step 6: Final answer
    x = 650,160.60

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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.