Home / 874,731.69-1,207,534.95-616,818.78

Finding the Fourth Proportional to 874,731.69, 1,207,534.95 and 616,818.78

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Solution

The fourth proportional to 874,731.69, 1,207,534.95 and 616,818.78 is: 851,495.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,731.69 : 1,207,534.95 = 616,818.78 : x
  2. Step 2: Convert to fraction form
    874,731.69/1,207,534.95 = 616,818.78/x
  3. Step 3: Cross multiply
    874,731.69x = 1,207,534.95 × 616,818.78
  4. Step 4: Simplify right side
    874,731.69x = 744,830,234,666.36
  5. Step 5: Solve for x
    x = 744,830,234,666.36/874,731.69
  6. Step 6: Final answer
    x = 851,495.66

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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.