Home / 1,064,842.47-1,471,037.15-921,353.40

Finding the Fourth Proportional to 1,064,842.47, 1,471,037.15 and 921,353.40

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Solution

The fourth proportional to 1,064,842.47, 1,471,037.15 and 921,353.40 is: 1,272,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064,842.47 : 1,471,037.15 = 921,353.40 : x
  2. Step 2: Convert to fraction form
    1,064,842.47/1,471,037.15 = 921,353.40/x
  3. Step 3: Cross multiply
    1,064,842.47x = 1,471,037.15 × 921,353.40
  4. Step 4: Simplify right side
    1,064,842.47x = 1,355,345,081,982.19
  5. Step 5: Solve for x
    x = 1,355,345,081,982.19/1,064,842.47
  6. Step 6: Final answer
    x = 1,272,812.76

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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.