Home / 723,058.56-997,818.21-400,765.50

Finding the Fourth Proportional to 723,058.56, 997,818.21 and 400,765.50

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Solution

The fourth proportional to 723,058.56, 997,818.21 and 400,765.50 is: 553,054.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,058.56 : 997,818.21 = 400,765.50 : x
  2. Step 2: Convert to fraction form
    723,058.56/997,818.21 = 400,765.50/x
  3. Step 3: Cross multiply
    723,058.56x = 997,818.21 × 400,765.50
  4. Step 4: Simplify right side
    723,058.56x = 399,891,113,839.76
  5. Step 5: Solve for x
    x = 399,891,113,839.76/723,058.56
  6. Step 6: Final answer
    x = 553,054.95

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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.