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Finding the Fourth Proportional to 662,726.40, 993,106.56 and 486,762.24

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Solution

The fourth proportional to 662,726.40, 993,106.56 and 486,762.24 is: 729,421.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,726.40 : 993,106.56 = 486,762.24 : x
  2. Step 2: Convert to fraction form
    662,726.40/993,106.56 = 486,762.24/x
  3. Step 3: Cross multiply
    662,726.40x = 993,106.56 × 486,762.24
  4. Step 4: Simplify right side
    662,726.40x = 483,406,773,704.29
  5. Step 5: Solve for x
    x = 483,406,773,704.29/662,726.40
  6. Step 6: Final answer
    x = 729,421.33

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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.