Home / 558,853.11-770,801.40-354,726.72

Finding the Fourth Proportional to 558,853.11, 770,801.40 and 354,726.72

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Solution

The fourth proportional to 558,853.11, 770,801.40 and 354,726.72 is: 489,258.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,853.11 : 770,801.40 = 354,726.72 : x
  2. Step 2: Convert to fraction form
    558,853.11/770,801.40 = 354,726.72/x
  3. Step 3: Cross multiply
    558,853.11x = 770,801.40 × 354,726.72
  4. Step 4: Simplify right side
    558,853.11x = 273,423,852,393.41
  5. Step 5: Solve for x
    x = 273,423,852,393.41/558,853.11
  6. Step 6: Final answer
    x = 489,258.89

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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.