Home / 1,078,129.80-1,616,417.10-704,363.40

Finding the Fourth Proportional to 1,078,129.80, 1,616,417.10 and 704,363.40

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Solution

The fourth proportional to 1,078,129.80, 1,616,417.10 and 704,363.40 is: 1,056,037.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,129.80 : 1,616,417.10 = 704,363.40 : x
  2. Step 2: Convert to fraction form
    1,078,129.80/1,616,417.10 = 704,363.40/x
  3. Step 3: Cross multiply
    1,078,129.80x = 1,616,417.10 × 704,363.40
  4. Step 4: Simplify right side
    1,078,129.80x = 1,138,545,044,374.14
  5. Step 5: Solve for x
    x = 1,138,545,044,374.14/1,078,129.80
  6. Step 6: Final answer
    x = 1,056,037.08

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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.