Home / 1,071,385.80-1,478,530.71-587,995.89

Finding the Fourth Proportional to 1,071,385.80, 1,478,530.71 and 587,995.89

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Solution

The fourth proportional to 1,071,385.80, 1,478,530.71 and 587,995.89 is: 811,444.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,385.80 : 1,478,530.71 = 587,995.89 : x
  2. Step 2: Convert to fraction form
    1,071,385.80/1,478,530.71 = 587,995.89/x
  3. Step 3: Cross multiply
    1,071,385.80x = 1,478,530.71 × 587,995.89
  4. Step 4: Simplify right side
    1,071,385.80x = 869,369,980,718.78
  5. Step 5: Solve for x
    x = 869,369,980,718.78/1,071,385.80
  6. Step 6: Final answer
    x = 811,444.37

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Double scale
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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.