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Finding the Fourth Proportional to 545,915.32, 753,355.47 and 304,208.08

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Solution

The fourth proportional to 545,915.32, 753,355.47 and 304,208.08 is: 419,802.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,915.32 : 753,355.47 = 304,208.08 : x
  2. Step 2: Convert to fraction form
    545,915.32/753,355.47 = 304,208.08/x
  3. Step 3: Cross multiply
    545,915.32x = 753,355.47 × 304,208.08
  4. Step 4: Simplify right side
    545,915.32x = 229,176,821,086.20
  5. Step 5: Solve for x
    x = 229,176,821,086.20/545,915.32
  6. Step 6: Final answer
    x = 419,802.88

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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.