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Finding the Fourth Proportional to 586,436.80, 879,655.20 and 383,483.20

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Solution

The fourth proportional to 586,436.80, 879,655.20 and 383,483.20 is: 575,224.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,436.80 : 879,655.20 = 383,483.20 : x
  2. Step 2: Convert to fraction form
    586,436.80/879,655.20 = 383,483.20/x
  3. Step 3: Cross multiply
    586,436.80x = 879,655.20 × 383,483.20
  4. Step 4: Simplify right side
    586,436.80x = 337,332,990,992.64
  5. Step 5: Solve for x
    x = 337,332,990,992.64/586,436.80
  6. Step 6: Final answer
    x = 575,224.80

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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.