Home / 650,955.20-977,008.80-384,382.40

Finding the Fourth Proportional to 650,955.20, 977,008.80 and 384,382.40

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Solution

The fourth proportional to 650,955.20, 977,008.80 and 384,382.40 is: 576,913.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,955.20 : 977,008.80 = 384,382.40 : x
  2. Step 2: Convert to fraction form
    650,955.20/977,008.80 = 384,382.40/x
  3. Step 3: Cross multiply
    650,955.20x = 977,008.80 × 384,382.40
  4. Step 4: Simplify right side
    650,955.20x = 375,544,987,365.12
  5. Step 5: Solve for x
    x = 375,544,987,365.12/650,955.20
  6. Step 6: Final answer
    x = 576,913.72

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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.