Home / 858,319.36-1,287,047.04-297,203.20

Finding the Fourth Proportional to 858,319.36, 1,287,047.04 and 297,203.20

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Solution

The fourth proportional to 858,319.36, 1,287,047.04 and 297,203.20 is: 445,655.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,319.36 : 1,287,047.04 = 297,203.20 : x
  2. Step 2: Convert to fraction form
    858,319.36/1,287,047.04 = 297,203.20/x
  3. Step 3: Cross multiply
    858,319.36x = 1,287,047.04 × 297,203.20
  4. Step 4: Simplify right side
    858,319.36x = 382,514,498,838.53
  5. Step 5: Solve for x
    x = 382,514,498,838.53/858,319.36
  6. Step 6: Final answer
    x = 445,655.21

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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.