Home / 747,396.56-1,031,429.16-407,886.64

Finding the Fourth Proportional to 747,396.56, 1,031,429.16 and 407,886.64

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Solution

The fourth proportional to 747,396.56, 1,031,429.16 and 407,886.64 is: 562,895.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,396.56 : 1,031,429.16 = 407,886.64 : x
  2. Step 2: Convert to fraction form
    747,396.56/1,031,429.16 = 407,886.64/x
  3. Step 3: Cross multiply
    747,396.56x = 1,031,429.16 × 407,886.64
  4. Step 4: Simplify right side
    747,396.56x = 420,706,174,470.42
  5. Step 5: Solve for x
    x = 420,706,174,470.42/747,396.56
  6. Step 6: Final answer
    x = 562,895.52

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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.