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Finding the Fourth Proportional to 904,078.76, 1,247,687 and 501,670.76

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Solution

The fourth proportional to 904,078.76, 1,247,687 and 501,670.76 is: 692,338.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,078.76 : 1,247,687 = 501,670.76 : x
  2. Step 2: Convert to fraction form
    904,078.76/1,247,687 = 501,670.76/x
  3. Step 3: Cross multiply
    904,078.76x = 1,247,687 × 501,670.76
  4. Step 4: Simplify right side
    904,078.76x = 625,928,085,532.12
  5. Step 5: Solve for x
    x = 625,928,085,532.12/904,078.76
  6. Step 6: Final answer
    x = 692,338.01

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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.