Home / 734,521.77-1,101,407.56-431,507.76

Finding the Fourth Proportional to 734,521.77, 1,101,407.56 and 431,507.76

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Solution

The fourth proportional to 734,521.77, 1,101,407.56 and 431,507.76 is: 647,041.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,521.77 : 1,101,407.56 = 431,507.76 : x
  2. Step 2: Convert to fraction form
    734,521.77/1,101,407.56 = 431,507.76/x
  3. Step 3: Cross multiply
    734,521.77x = 1,101,407.56 × 431,507.76
  4. Step 4: Simplify right side
    734,521.77x = 475,265,903,853.62
  5. Step 5: Solve for x
    x = 475,265,903,853.62/734,521.77
  6. Step 6: Final answer
    x = 647,041.28

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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.