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Finding the Fourth Proportional to 710,956.70, 981,131.91 and 424,501.82

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Solution

The fourth proportional to 710,956.70, 981,131.91 and 424,501.82 is: 585,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,956.70 : 981,131.91 = 424,501.82 : x
  2. Step 2: Convert to fraction form
    710,956.70/981,131.91 = 424,501.82/x
  3. Step 3: Cross multiply
    710,956.70x = 981,131.91 × 424,501.82
  4. Step 4: Simplify right side
    710,956.70x = 416,492,281,455.08
  5. Step 5: Solve for x
    x = 416,492,281,455.08/710,956.70
  6. Step 6: Final answer
    x = 585,819.48

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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.