Home / 684,091.80-1,026,429.30-431,566.20

Finding the Fourth Proportional to 684,091.80, 1,026,429.30 and 431,566.20

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Solution

The fourth proportional to 684,091.80, 1,026,429.30 and 431,566.20 is: 647,533.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,091.80 : 1,026,429.30 = 431,566.20 : x
  2. Step 2: Convert to fraction form
    684,091.80/1,026,429.30 = 431,566.20/x
  3. Step 3: Cross multiply
    684,091.80x = 1,026,429.30 × 431,566.20
  4. Step 4: Simplify right side
    684,091.80x = 442,972,192,569.66
  5. Step 5: Solve for x
    x = 442,972,192,569.66/684,091.80
  6. Step 6: Final answer
    x = 647,533.26

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Double scale
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1.5x scale

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.