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Finding the Fourth Proportional to 650,957.70, 977,012.55 and 384,384.90

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Solution

The fourth proportional to 650,957.70, 977,012.55 and 384,384.90 is: 576,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,957.70 : 977,012.55 = 384,384.90 : x
  2. Step 2: Convert to fraction form
    650,957.70/977,012.55 = 384,384.90/x
  3. Step 3: Cross multiply
    650,957.70x = 977,012.55 × 384,384.90
  4. Step 4: Simplify right side
    650,957.70x = 375,548,871,330.50
  5. Step 5: Solve for x
    x = 375,548,871,330.50/650,957.70
  6. Step 6: Final answer
    x = 576,917.47

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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.