Home / 971,520.80-1,457,281.20-688,085.60

Finding the Fourth Proportional to 971,520.80, 1,457,281.20 and 688,085.60

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Solution

The fourth proportional to 971,520.80, 1,457,281.20 and 688,085.60 is: 1,032,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,520.80 : 1,457,281.20 = 688,085.60 : x
  2. Step 2: Convert to fraction form
    971,520.80/1,457,281.20 = 688,085.60/x
  3. Step 3: Cross multiply
    971,520.80x = 1,457,281.20 × 688,085.60
  4. Step 4: Simplify right side
    971,520.80x = 1,002,734,208,870.72
  5. Step 5: Solve for x
    x = 1,002,734,208,870.72/971,520.80
  6. Step 6: Final answer
    x = 1,032,128.40

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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.