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Finding the Fourth Proportional to 651,807.20, 977,419.20 and 252,315.20

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Solution

The fourth proportional to 651,807.20, 977,419.20 and 252,315.20 is: 378,359.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,807.20 : 977,419.20 = 252,315.20 : x
  2. Step 2: Convert to fraction form
    651,807.20/977,419.20 = 252,315.20/x
  3. Step 3: Cross multiply
    651,807.20x = 977,419.20 × 252,315.20
  4. Step 4: Simplify right side
    651,807.20x = 246,617,720,931.84
  5. Step 5: Solve for x
    x = 246,617,720,931.84/651,807.20
  6. Step 6: Final answer
    x = 378,359.92

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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.