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Finding the Fourth Proportional to 707,291.18, 976,074.27 and 385,010.54

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Solution

The fourth proportional to 707,291.18, 976,074.27 and 385,010.54 is: 531,321.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,291.18 : 976,074.27 = 385,010.54 : x
  2. Step 2: Convert to fraction form
    707,291.18/976,074.27 = 385,010.54/x
  3. Step 3: Cross multiply
    707,291.18x = 976,074.27 × 385,010.54
  4. Step 4: Simplify right side
    707,291.18x = 375,798,881,772.81
  5. Step 5: Solve for x
    x = 375,798,881,772.81/707,291.18
  6. Step 6: Final answer
    x = 531,321.32

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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.