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Finding the Fourth Proportional to 710,834.72, 980,953.88 and 424,348.65

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Solution

The fourth proportional to 710,834.72, 980,953.88 and 424,348.65 is: 585,602.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,834.72 : 980,953.88 = 424,348.65 : x
  2. Step 2: Convert to fraction form
    710,834.72/980,953.88 = 424,348.65/x
  3. Step 3: Cross multiply
    710,834.72x = 980,953.88 × 424,348.65
  4. Step 4: Simplify right side
    710,834.72x = 416,266,452,568.52
  5. Step 5: Solve for x
    x = 416,266,452,568.52/710,834.72
  6. Step 6: Final answer
    x = 585,602.31

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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.