Home / 1,005,731.63-1,387,909.58-553,022.63

Finding the Fourth Proportional to 1,005,731.63, 1,387,909.58 and 553,022.63

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Solution

The fourth proportional to 1,005,731.63, 1,387,909.58 and 553,022.63 is: 763,171.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,731.63 : 1,387,909.58 = 553,022.63 : x
  2. Step 2: Convert to fraction form
    1,005,731.63/1,387,909.58 = 553,022.63/x
  3. Step 3: Cross multiply
    1,005,731.63x = 1,387,909.58 × 553,022.63
  4. Step 4: Simplify right side
    1,005,731.63x = 767,545,406,133.80
  5. Step 5: Solve for x
    x = 767,545,406,133.80/1,005,731.63
  6. Step 6: Final answer
    x = 763,171.19

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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.