Home / 858,417.60-1,287,626.40-297,508.80

Finding the Fourth Proportional to 858,417.60, 1,287,626.40 and 297,508.80

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Solution

The fourth proportional to 858,417.60, 1,287,626.40 and 297,508.80 is: 446,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,417.60 : 1,287,626.40 = 297,508.80 : x
  2. Step 2: Convert to fraction form
    858,417.60/1,287,626.40 = 297,508.80/x
  3. Step 3: Cross multiply
    858,417.60x = 1,287,626.40 × 297,508.80
  4. Step 4: Simplify right side
    858,417.60x = 383,080,185,112.32
  5. Step 5: Solve for x
    x = 383,080,185,112.32/858,417.60
  6. Step 6: Final answer
    x = 446,263.20

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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.