Home / 870,071.76-1,201,213.80-548,057.88

Finding the Fourth Proportional to 870,071.76, 1,201,213.80 and 548,057.88

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Solution

The fourth proportional to 870,071.76, 1,201,213.80 and 548,057.88 is: 756,644.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,071.76 : 1,201,213.80 = 548,057.88 : x
  2. Step 2: Convert to fraction form
    870,071.76/1,201,213.80 = 548,057.88/x
  3. Step 3: Cross multiply
    870,071.76x = 1,201,213.80 × 548,057.88
  4. Step 4: Simplify right side
    870,071.76x = 658,334,688,654.74
  5. Step 5: Solve for x
    x = 658,334,688,654.74/870,071.76
  6. Step 6: Final answer
    x = 756,644.13

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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.