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Finding the Fourth Proportional to 612,338.40, 845,024.40 and 344,066.40

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Solution

The fourth proportional to 612,338.40, 845,024.40 and 344,066.40 is: 474,810.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,338.40 : 845,024.40 = 344,066.40 : x
  2. Step 2: Convert to fraction form
    612,338.40/845,024.40 = 344,066.40/x
  3. Step 3: Cross multiply
    612,338.40x = 845,024.40 × 344,066.40
  4. Step 4: Simplify right side
    612,338.40x = 290,744,503,220.16
  5. Step 5: Solve for x
    x = 290,744,503,220.16/612,338.40
  6. Step 6: Final answer
    x = 474,810.18

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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.