Home / 858,987.48-1,287,509.04-437,372.76

Finding the Fourth Proportional to 858,987.48, 1,287,509.04 and 437,372.76

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Solution

The fourth proportional to 858,987.48, 1,287,509.04 and 437,372.76 is: 655,564.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,987.48 : 1,287,509.04 = 437,372.76 : x
  2. Step 2: Convert to fraction form
    858,987.48/1,287,509.04 = 437,372.76/x
  3. Step 3: Cross multiply
    858,987.48x = 1,287,509.04 × 437,372.76
  4. Step 4: Simplify right side
    858,987.48x = 563,121,382,349.75
  5. Step 5: Solve for x
    x = 563,121,382,349.75/858,987.48
  6. Step 6: Final answer
    x = 655,564.13

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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.