Home / 747,417-1,031,435.19-407,885.25

Finding the Fourth Proportional to 747,417, 1,031,435.19 and 407,885.25

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Solution

The fourth proportional to 747,417, 1,031,435.19 and 407,885.25 is: 562,881.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,417 : 1,031,435.19 = 407,885.25 : x
  2. Step 2: Convert to fraction form
    747,417/1,031,435.19 = 407,885.25/x
  3. Step 3: Cross multiply
    747,417x = 1,031,435.19 × 407,885.25
  4. Step 4: Simplify right side
    747,417x = 420,707,200,331.95
  5. Step 5: Solve for x
    x = 420,707,200,331.95/747,417
  6. Step 6: Final answer
    x = 562,881.50

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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.