Home / 1,425,815.10-1,967,670.54-781,276.32

Finding the Fourth Proportional to 1,425,815.10, 1,967,670.54 and 781,276.32

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Solution

The fourth proportional to 1,425,815.10, 1,967,670.54 and 781,276.32 is: 1,078,186.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,815.10 : 1,967,670.54 = 781,276.32 : x
  2. Step 2: Convert to fraction form
    1,425,815.10/1,967,670.54 = 781,276.32/x
  3. Step 3: Cross multiply
    1,425,815.10x = 1,967,670.54 × 781,276.32
  4. Step 4: Simplify right side
    1,425,815.10x = 1,537,294,398,463.61
  5. Step 5: Solve for x
    x = 1,537,294,398,463.61/1,425,815.10
  6. Step 6: Final answer
    x = 1,078,186.36

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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.