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Finding the Fourth Proportional to 581,208.40, 870,257.40 and 369,701.20

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Solution

The fourth proportional to 581,208.40, 870,257.40 and 369,701.20 is: 553,562.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,208.40 : 870,257.40 = 369,701.20 : x
  2. Step 2: Convert to fraction form
    581,208.40/870,257.40 = 369,701.20/x
  3. Step 3: Cross multiply
    581,208.40x = 870,257.40 × 369,701.20
  4. Step 4: Simplify right side
    581,208.40x = 321,735,205,088.88
  5. Step 5: Solve for x
    x = 321,735,205,088.88/581,208.40
  6. Step 6: Final answer
    x = 553,562.55

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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.