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Finding the Fourth Proportional to 630,987.13, 945,523 and 462,619.54

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Solution

The fourth proportional to 630,987.13, 945,523 and 462,619.54 is: 693,227.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,987.13 : 945,523 = 462,619.54 : x
  2. Step 2: Convert to fraction form
    630,987.13/945,523 = 462,619.54/x
  3. Step 3: Cross multiply
    630,987.13x = 945,523 × 462,619.54
  4. Step 4: Simplify right side
    630,987.13x = 437,417,415,319.42
  5. Step 5: Solve for x
    x = 437,417,415,319.42/630,987.13
  6. Step 6: Final answer
    x = 693,227.16

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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.