Home / 1,064,857.47-1,471,057.86-921,368.40

Finding the Fourth Proportional to 1,064,857.47, 1,471,057.86 and 921,368.40

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Solution

The fourth proportional to 1,064,857.47, 1,471,057.86 and 921,368.40 is: 1,272,833.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064,857.47 : 1,471,057.86 = 921,368.40 : x
  2. Step 2: Convert to fraction form
    1,064,857.47/1,471,057.86 = 921,368.40/x
  3. Step 3: Cross multiply
    1,064,857.47x = 1,471,057.86 × 921,368.40
  4. Step 4: Simplify right side
    1,064,857.47x = 1,355,386,226,775.62
  5. Step 5: Solve for x
    x = 1,355,386,226,775.62/1,064,857.47
  6. Step 6: Final answer
    x = 1,272,833.47

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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.