Home / 879,537.60-1,319,306.40-318,974.40

Finding the Fourth Proportional to 879,537.60, 1,319,306.40 and 318,974.40

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Solution

The fourth proportional to 879,537.60, 1,319,306.40 and 318,974.40 is: 478,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,537.60 : 1,319,306.40 = 318,974.40 : x
  2. Step 2: Convert to fraction form
    879,537.60/1,319,306.40 = 318,974.40/x
  3. Step 3: Cross multiply
    879,537.60x = 1,319,306.40 × 318,974.40
  4. Step 4: Simplify right side
    879,537.60x = 420,824,967,356.16
  5. Step 5: Solve for x
    x = 420,824,967,356.16/879,537.60
  6. Step 6: Final answer
    x = 478,461.60

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Similar ratio
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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.