Home / 781,389.28-1,170,567.34-575,850.65

Finding the Fourth Proportional to 781,389.28, 1,170,567.34 and 575,850.65

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Solution

The fourth proportional to 781,389.28, 1,170,567.34 and 575,850.65 is: 862,658.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,389.28 : 1,170,567.34 = 575,850.65 : x
  2. Step 2: Convert to fraction form
    781,389.28/1,170,567.34 = 575,850.65/x
  3. Step 3: Cross multiply
    781,389.28x = 1,170,567.34 × 575,850.65
  4. Step 4: Simplify right side
    781,389.28x = 674,071,963,607.77
  5. Step 5: Solve for x
    x = 674,071,963,607.77/781,389.28
  6. Step 6: Final answer
    x = 862,658.32

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Double scale
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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.