Home / 781,917.04-1,078,985.86-437,674.13

Finding the Fourth Proportional to 781,917.04, 1,078,985.86 and 437,674.13

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Solution

The fourth proportional to 781,917.04, 1,078,985.86 and 437,674.13 is: 603,956.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,917.04 : 1,078,985.86 = 437,674.13 : x
  2. Step 2: Convert to fraction form
    781,917.04/1,078,985.86 = 437,674.13/x
  3. Step 3: Cross multiply
    781,917.04x = 1,078,985.86 × 437,674.13
  4. Step 4: Simplify right side
    781,917.04x = 472,244,197,557.80
  5. Step 5: Solve for x
    x = 472,244,197,557.80/781,917.04
  6. Step 6: Final answer
    x = 603,956.91

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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.