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Finding the Fourth Proportional to 604,802.40, 907,203.60 and 418,178.40

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Solution

The fourth proportional to 604,802.40, 907,203.60 and 418,178.40 is: 627,267.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,802.40 : 907,203.60 = 418,178.40 : x
  2. Step 2: Convert to fraction form
    604,802.40/907,203.60 = 418,178.40/x
  3. Step 3: Cross multiply
    604,802.40x = 907,203.60 × 418,178.40
  4. Step 4: Simplify right side
    604,802.40x = 379,372,949,922.24
  5. Step 5: Solve for x
    x = 379,372,949,922.24/604,802.40
  6. Step 6: Final answer
    x = 627,267.60

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Similar ratio
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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.