Home / 1,127,008.47-1,690,616.93-407,529.75

Finding the Fourth Proportional to 1,127,008.47, 1,690,616.93 and 407,529.75

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Solution

The fourth proportional to 1,127,008.47, 1,690,616.93 and 407,529.75 is: 611,332.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,008.47 : 1,690,616.93 = 407,529.75 : x
  2. Step 2: Convert to fraction form
    1,127,008.47/1,690,616.93 = 407,529.75/x
  3. Step 3: Cross multiply
    1,127,008.47x = 1,690,616.93 × 407,529.75
  4. Step 4: Simplify right side
    1,127,008.47x = 688,976,692,791.02
  5. Step 5: Solve for x
    x = 688,976,692,791.02/1,127,008.47
  6. Step 6: Final answer
    x = 611,332.31

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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.