Home / 780,510.96-1,077,126.12-440,971.92

Finding the Fourth Proportional to 780,510.96, 1,077,126.12 and 440,971.92

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Solution

The fourth proportional to 780,510.96, 1,077,126.12 and 440,971.92 is: 608,553.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,510.96 : 1,077,126.12 = 440,971.92 : x
  2. Step 2: Convert to fraction form
    780,510.96/1,077,126.12 = 440,971.92/x
  3. Step 3: Cross multiply
    780,510.96x = 1,077,126.12 × 440,971.92
  4. Step 4: Simplify right side
    780,510.96x = 474,982,373,218.55
  5. Step 5: Solve for x
    x = 474,982,373,218.55/780,510.96
  6. Step 6: Final answer
    x = 608,553.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.