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Finding the Fourth Proportional to 707,585.79, 976,480.06 and 385,302.18

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Solution

The fourth proportional to 707,585.79, 976,480.06 and 385,302.18 is: 531,723.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,585.79 : 976,480.06 = 385,302.18 : x
  2. Step 2: Convert to fraction form
    707,585.79/976,480.06 = 385,302.18/x
  3. Step 3: Cross multiply
    707,585.79x = 976,480.06 × 385,302.18
  4. Step 4: Simplify right side
    707,585.79x = 376,239,899,265.52
  5. Step 5: Solve for x
    x = 376,239,899,265.52/707,585.79
  6. Step 6: Final answer
    x = 531,723.36

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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.