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Finding the Fourth Proportional to 656,918.65, 906,712.88 and 370,604.81

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Solution

The fourth proportional to 656,918.65, 906,712.88 and 370,604.81 is: 511,527.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,918.65 : 906,712.88 = 370,604.81 : x
  2. Step 2: Convert to fraction form
    656,918.65/906,712.88 = 370,604.81/x
  3. Step 3: Cross multiply
    656,918.65x = 906,712.88 × 370,604.81
  4. Step 4: Simplify right side
    656,918.65x = 336,032,155,030.71
  5. Step 5: Solve for x
    x = 336,032,155,030.71/656,918.65
  6. Step 6: Final answer
    x = 511,527.81

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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.