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Finding the Fourth Proportional to 707,290.68, 976,073.58 and 385,010.04

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Solution

The fourth proportional to 707,290.68, 976,073.58 and 385,010.04 is: 531,320.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,290.68 : 976,073.58 = 385,010.04 : x
  2. Step 2: Convert to fraction form
    707,290.68/976,073.58 = 385,010.04/x
  3. Step 3: Cross multiply
    707,290.68x = 976,073.58 × 385,010.04
  4. Step 4: Simplify right side
    707,290.68x = 375,798,128,078.74
  5. Step 5: Solve for x
    x = 375,798,128,078.74/707,290.68
  6. Step 6: Final answer
    x = 531,320.63

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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.