Home / 753,287.06-1,039,543.65-409,129.71

Finding the Fourth Proportional to 753,287.06, 1,039,543.65 and 409,129.71

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Solution

The fourth proportional to 753,287.06, 1,039,543.65 and 409,129.71 is: 564,603.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,287.06 : 1,039,543.65 = 409,129.71 : x
  2. Step 2: Convert to fraction form
    753,287.06/1,039,543.65 = 409,129.71/x
  3. Step 3: Cross multiply
    753,287.06x = 1,039,543.65 × 409,129.71
  4. Step 4: Simplify right side
    753,287.06x = 425,308,192,056.84
  5. Step 5: Solve for x
    x = 425,308,192,056.84/753,287.06
  6. Step 6: Final answer
    x = 564,603.08

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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.