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Finding the Fourth Proportional to 710,955.70, 981,130.53 and 424,500.82

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Solution

The fourth proportional to 710,955.70, 981,130.53 and 424,500.82 is: 585,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,955.70 : 981,130.53 = 424,500.82 : x
  2. Step 2: Convert to fraction form
    710,955.70/981,130.53 = 424,500.82/x
  3. Step 3: Cross multiply
    710,955.70x = 981,130.53 × 424,500.82
  4. Step 4: Simplify right side
    710,955.70x = 416,490,714,512.04
  5. Step 5: Solve for x
    x = 416,490,714,512.04/710,955.70
  6. Step 6: Final answer
    x = 585,818.10

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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.