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Finding the Fourth Proportional to 579,808.60, 869,712.90 and 496,864.60

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Solution

The fourth proportional to 579,808.60, 869,712.90 and 496,864.60 is: 745,296.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,808.60 : 869,712.90 = 496,864.60 : x
  2. Step 2: Convert to fraction form
    579,808.60/869,712.90 = 496,864.60/x
  3. Step 3: Cross multiply
    579,808.60x = 869,712.90 × 496,864.60
  4. Step 4: Simplify right side
    579,808.60x = 432,129,552,173.34
  5. Step 5: Solve for x
    x = 432,129,552,173.34/579,808.60
  6. Step 6: Final answer
    x = 745,296.90

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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.