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Finding the Fourth Proportional to 553,333.60, 830,000.40 and 497,346.40

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Solution

The fourth proportional to 553,333.60, 830,000.40 and 497,346.40 is: 746,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,333.60 : 830,000.40 = 497,346.40 : x
  2. Step 2: Convert to fraction form
    553,333.60/830,000.40 = 497,346.40/x
  3. Step 3: Cross multiply
    553,333.60x = 830,000.40 × 497,346.40
  4. Step 4: Simplify right side
    553,333.60x = 412,797,710,938.56
  5. Step 5: Solve for x
    x = 412,797,710,938.56/553,333.60
  6. Step 6: Final answer
    x = 746,019.60

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Similar ratio
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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.