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Finding the Fourth Proportional to 585,465.79, 878,398.07 and 315,620.01

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Solution

The fourth proportional to 585,465.79, 878,398.07 and 315,620.01 is: 473,537.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,465.79 : 878,398.07 = 315,620.01 : x
  2. Step 2: Convert to fraction form
    585,465.79/878,398.07 = 315,620.01/x
  3. Step 3: Cross multiply
    585,465.79x = 878,398.07 × 315,620.01
  4. Step 4: Simplify right side
    585,465.79x = 277,240,007,637.38
  5. Step 5: Solve for x
    x = 277,240,007,637.38/585,465.79
  6. Step 6: Final answer
    x = 473,537.50

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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.