Home / 747,506.31-1,121,259.47-427,433.67

Finding the Fourth Proportional to 747,506.31, 1,121,259.47 and 427,433.67

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Solution

The fourth proportional to 747,506.31, 1,121,259.47 and 427,433.67 is: 641,150.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,506.31 : 1,121,259.47 = 427,433.67 : x
  2. Step 2: Convert to fraction form
    747,506.31/1,121,259.47 = 427,433.67/x
  3. Step 3: Cross multiply
    747,506.31x = 1,121,259.47 × 427,433.67
  4. Step 4: Simplify right side
    747,506.31x = 479,264,048,147.19
  5. Step 5: Solve for x
    x = 479,264,048,147.19/747,506.31
  6. Step 6: Final answer
    x = 641,150.51

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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.