Home / 648,678.61-973,110.78-199,437.20

Finding the Fourth Proportional to 648,678.61, 973,110.78 and 199,437.20

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Solution

The fourth proportional to 648,678.61, 973,110.78 and 199,437.20 is: 299,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,678.61 : 973,110.78 = 199,437.20 : x
  2. Step 2: Convert to fraction form
    648,678.61/973,110.78 = 199,437.20/x
  3. Step 3: Cross multiply
    648,678.61x = 973,110.78 × 199,437.20
  4. Step 4: Simplify right side
    648,678.61x = 194,074,487,288.74
  5. Step 5: Solve for x
    x = 194,074,487,288.74/648,678.61
  6. Step 6: Final answer
    x = 299,184.35

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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.