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Finding the Fourth Proportional to 604,804.40, 907,206.60 and 418,180.40

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Solution

The fourth proportional to 604,804.40, 907,206.60 and 418,180.40 is: 627,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,804.40 : 907,206.60 = 418,180.40 : x
  2. Step 2: Convert to fraction form
    604,804.40/907,206.60 = 418,180.40/x
  3. Step 3: Cross multiply
    604,804.40x = 907,206.60 × 418,180.40
  4. Step 4: Simplify right side
    604,804.40x = 379,376,018,870.64
  5. Step 5: Solve for x
    x = 379,376,018,870.64/604,804.40
  6. Step 6: Final answer
    x = 627,270.60

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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.