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Finding the Fourth Proportional to 898,289.93, 1,347,358.99 and 291,065.39

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Solution

The fourth proportional to 898,289.93, 1,347,358.99 and 291,065.39 is: 436,573.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,289.93 : 1,347,358.99 = 291,065.39 : x
  2. Step 2: Convert to fraction form
    898,289.93/1,347,358.99 = 291,065.39/x
  3. Step 3: Cross multiply
    898,289.93x = 1,347,358.99 × 291,065.39
  4. Step 4: Simplify right side
    898,289.93x = 392,169,569,894.36
  5. Step 5: Solve for x
    x = 392,169,569,894.36/898,289.93
  6. Step 6: Final answer
    x = 436,573.49

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.