Home / 924,136.20-1,275,307.95-521,728.20

Finding the Fourth Proportional to 924,136.20, 1,275,307.95 and 521,728.20

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Solution

The fourth proportional to 924,136.20, 1,275,307.95 and 521,728.20 is: 719,984.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,136.20 : 1,275,307.95 = 521,728.20 : x
  2. Step 2: Convert to fraction form
    924,136.20/1,275,307.95 = 521,728.20/x
  3. Step 3: Cross multiply
    924,136.20x = 1,275,307.95 × 521,728.20
  4. Step 4: Simplify right side
    924,136.20x = 665,364,121,199.19
  5. Step 5: Solve for x
    x = 665,364,121,199.19/924,136.20
  6. Step 6: Final answer
    x = 719,984.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.