Home / 715,173.81-986,502.08-424,588.14

Finding the Fourth Proportional to 715,173.81, 986,502.08 and 424,588.14

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Solution

The fourth proportional to 715,173.81, 986,502.08 and 424,588.14 is: 585,671.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,173.81 : 986,502.08 = 424,588.14 : x
  2. Step 2: Convert to fraction form
    715,173.81/986,502.08 = 424,588.14/x
  3. Step 3: Cross multiply
    715,173.81x = 986,502.08 × 424,588.14
  4. Step 4: Simplify right side
    715,173.81x = 418,857,081,130.39
  5. Step 5: Solve for x
    x = 418,857,081,130.39/715,173.81
  6. Step 6: Final answer
    x = 585,671.73

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Double scale
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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.