Home / 650,961.20-977,017.80-384,388.40

Finding the Fourth Proportional to 650,961.20, 977,017.80 and 384,388.40

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Solution

The fourth proportional to 650,961.20, 977,017.80 and 384,388.40 is: 576,922.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,961.20 : 977,017.80 = 384,388.40 : x
  2. Step 2: Convert to fraction form
    650,961.20/977,017.80 = 384,388.40/x
  3. Step 3: Cross multiply
    650,961.20x = 977,017.80 × 384,388.40
  4. Step 4: Simplify right side
    650,961.20x = 375,554,308,913.52
  5. Step 5: Solve for x
    x = 375,554,308,913.52/650,961.20
  6. Step 6: Final answer
    x = 576,922.72

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1.5x scale

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.