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Finding the Fourth Proportional to 723,354.04, 998,320.98 and 475,208.20

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Solution

The fourth proportional to 723,354.04, 998,320.98 and 475,208.20 is: 655,848.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,354.04 : 998,320.98 = 475,208.20 : x
  2. Step 2: Convert to fraction form
    723,354.04/998,320.98 = 475,208.20/x
  3. Step 3: Cross multiply
    723,354.04x = 998,320.98 × 475,208.20
  4. Step 4: Simplify right side
    723,354.04x = 474,410,315,928.04
  5. Step 5: Solve for x
    x = 474,410,315,928.04/723,354.04
  6. Step 6: Final answer
    x = 655,848.02

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Double scale
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Similar ratio
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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.