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Finding the Fourth Proportional to 577,269.70, 865,904.55 and 553,650.10

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Solution

The fourth proportional to 577,269.70, 865,904.55 and 553,650.10 is: 830,475.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,269.70 : 865,904.55 = 553,650.10 : x
  2. Step 2: Convert to fraction form
    577,269.70/865,904.55 = 553,650.10/x
  3. Step 3: Cross multiply
    577,269.70x = 865,904.55 × 553,650.10
  4. Step 4: Simplify right side
    577,269.70x = 479,408,140,697.96
  5. Step 5: Solve for x
    x = 479,408,140,697.96/577,269.70
  6. Step 6: Final answer
    x = 830,475.15

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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.