Home / 747,685.17-1,122,113.69-521,574.89

Finding the Fourth Proportional to 747,685.17, 1,122,113.69 and 521,574.89

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Solution

The fourth proportional to 747,685.17, 1,122,113.69 and 521,574.89 is: 782,771.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,685.17 : 1,122,113.69 = 521,574.89 : x
  2. Step 2: Convert to fraction form
    747,685.17/1,122,113.69 = 521,574.89/x
  3. Step 3: Cross multiply
    747,685.17x = 1,122,113.69 × 521,574.89
  4. Step 4: Simplify right side
    747,685.17x = 585,266,316,210.80
  5. Step 5: Solve for x
    x = 585,266,316,210.80/747,685.17
  6. Step 6: Final answer
    x = 782,771.06

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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.