Home / 980,868.40-1,470,209.10-381,630.40

Finding the Fourth Proportional to 980,868.40, 1,470,209.10 and 381,630.40

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Solution

The fourth proportional to 980,868.40, 1,470,209.10 and 381,630.40 is: 572,020.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,868.40 : 1,470,209.10 = 381,630.40 : x
  2. Step 2: Convert to fraction form
    980,868.40/1,470,209.10 = 381,630.40/x
  3. Step 3: Cross multiply
    980,868.40x = 1,470,209.10 × 381,630.40
  4. Step 4: Simplify right side
    980,868.40x = 561,076,486,916.64
  5. Step 5: Solve for x
    x = 561,076,486,916.64/980,868.40
  6. Step 6: Final answer
    x = 572,020.15

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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.