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Finding the Fourth Proportional to 899,080.78, 1,240,755.86 and 536,715.04

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Solution

The fourth proportional to 899,080.78, 1,240,755.86 and 536,715.04 is: 740,681.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,080.78 : 1,240,755.86 = 536,715.04 : x
  2. Step 2: Convert to fraction form
    899,080.78/1,240,755.86 = 536,715.04/x
  3. Step 3: Cross multiply
    899,080.78x = 1,240,755.86 × 536,715.04
  4. Step 4: Simplify right side
    899,080.78x = 665,932,331,030.14
  5. Step 5: Solve for x
    x = 665,932,331,030.14/899,080.78
  6. Step 6: Final answer
    x = 740,681.31

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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.