Home / 790,842.80-1,091,363.65-428,267.06

Finding the Fourth Proportional to 790,842.80, 1,091,363.65 and 428,267.06

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Solution

The fourth proportional to 790,842.80, 1,091,363.65 and 428,267.06 is: 591,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,842.80 : 1,091,363.65 = 428,267.06 : x
  2. Step 2: Convert to fraction form
    790,842.80/1,091,363.65 = 428,267.06/x
  3. Step 3: Cross multiply
    790,842.80x = 1,091,363.65 × 428,267.06
  4. Step 4: Simplify right side
    790,842.80x = 467,395,095,248.88
  5. Step 5: Solve for x
    x = 467,395,095,248.88/790,842.80
  6. Step 6: Final answer
    x = 591,008.85

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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.