Home / 747,685.35-1,031,792.40-425,388.51

Finding the Fourth Proportional to 747,685.35, 1,031,792.40 and 425,388.51

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Solution

The fourth proportional to 747,685.35, 1,031,792.40 and 425,388.51 is: 587,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,685.35 : 1,031,792.40 = 425,388.51 : x
  2. Step 2: Convert to fraction form
    747,685.35/1,031,792.40 = 425,388.51/x
  3. Step 3: Cross multiply
    747,685.35x = 1,031,792.40 × 425,388.51
  4. Step 4: Simplify right side
    747,685.35x = 438,912,631,665.32
  5. Step 5: Solve for x
    x = 438,912,631,665.32/747,685.35
  6. Step 6: Final answer
    x = 587,028.53

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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.