Home / 858,888.90-1,287,296.55-437,948.10

Finding the Fourth Proportional to 858,888.90, 1,287,296.55 and 437,948.10

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Solution

The fourth proportional to 858,888.90, 1,287,296.55 and 437,948.10 is: 656,393.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,888.90 : 1,287,296.55 = 437,948.10 : x
  2. Step 2: Convert to fraction form
    858,888.90/1,287,296.55 = 437,948.10/x
  3. Step 3: Cross multiply
    858,888.90x = 1,287,296.55 × 437,948.10
  4. Step 4: Simplify right side
    858,888.90x = 563,769,078,209.06
  5. Step 5: Solve for x
    x = 563,769,078,209.06/858,888.90
  6. Step 6: Final answer
    x = 656,393.48

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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.