Home / 781,852.89-1,078,948.73-437,691.65

Finding the Fourth Proportional to 781,852.89, 1,078,948.73 and 437,691.65

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Solution

The fourth proportional to 781,852.89, 1,078,948.73 and 437,691.65 is: 604,009.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,852.89 : 1,078,948.73 = 437,691.65 : x
  2. Step 2: Convert to fraction form
    781,852.89/1,078,948.73 = 437,691.65/x
  3. Step 3: Cross multiply
    781,852.89x = 1,078,948.73 × 437,691.65
  4. Step 4: Simplify right side
    781,852.89x = 472,246,842,315.90
  5. Step 5: Solve for x
    x = 472,246,842,315.90/781,852.89
  6. Step 6: Final answer
    x = 604,009.84

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1.5x scale

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.