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Finding the Fourth Proportional to 553,729.70, 830,594.55 and 548,480.90

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Solution

The fourth proportional to 553,729.70, 830,594.55 and 548,480.90 is: 822,721.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,729.70 : 830,594.55 = 548,480.90 : x
  2. Step 2: Convert to fraction form
    553,729.70/830,594.55 = 548,480.90/x
  3. Step 3: Cross multiply
    553,729.70x = 830,594.55 × 548,480.90
  4. Step 4: Simplify right side
    553,729.70x = 455,565,246,319.10
  5. Step 5: Solve for x
    x = 455,565,246,319.10/553,729.70
  6. Step 6: Final answer
    x = 822,721.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.