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Finding the Fourth Proportional to 553,670.20, 830,505.30 and 473,954.05

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Solution

The fourth proportional to 553,670.20, 830,505.30 and 473,954.05 is: 710,931.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,670.20 : 830,505.30 = 473,954.05 : x
  2. Step 2: Convert to fraction form
    553,670.20/830,505.30 = 473,954.05/x
  3. Step 3: Cross multiply
    553,670.20x = 830,505.30 × 473,954.05
  4. Step 4: Simplify right side
    553,670.20x = 393,621,350,481.47
  5. Step 5: Solve for x
    x = 393,621,350,481.47/553,670.20
  6. Step 6: Final answer
    x = 710,931.08

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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.