Home / 747,515.13-1,031,556.24-407,985.81

Finding the Fourth Proportional to 747,515.13, 1,031,556.24 and 407,985.81

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Solution

The fourth proportional to 747,515.13, 1,031,556.24 and 407,985.81 is: 563,012.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,515.13 : 1,031,556.24 = 407,985.81 : x
  2. Step 2: Convert to fraction form
    747,515.13/1,031,556.24 = 407,985.81/x
  3. Step 3: Cross multiply
    747,515.13x = 1,031,556.24 × 407,985.81
  4. Step 4: Simplify right side
    747,515.13x = 420,860,308,136.95
  5. Step 5: Solve for x
    x = 420,860,308,136.95/747,515.13
  6. Step 6: Final answer
    x = 563,012.43

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Double scale
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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.