Home / 870,592.17-1,201,417.20-488,618.95

Finding the Fourth Proportional to 870,592.17, 1,201,417.20 and 488,618.95

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Solution

The fourth proportional to 870,592.17, 1,201,417.20 and 488,618.95 is: 674,294.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,592.17 : 1,201,417.20 = 488,618.95 : x
  2. Step 2: Convert to fraction form
    870,592.17/1,201,417.20 = 488,618.95/x
  3. Step 3: Cross multiply
    870,592.17x = 1,201,417.20 × 488,618.95
  4. Step 4: Simplify right side
    870,592.17x = 587,035,212,277.71
  5. Step 5: Solve for x
    x = 587,035,212,277.71/870,592.17
  6. Step 6: Final answer
    x = 674,294.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.