Home / 910,790.69-1,256,364.23-588,500.78

Finding the Fourth Proportional to 910,790.69, 1,256,364.23 and 588,500.78

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Solution

The fourth proportional to 910,790.69, 1,256,364.23 and 588,500.78 is: 811,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,790.69 : 1,256,364.23 = 588,500.78 : x
  2. Step 2: Convert to fraction form
    910,790.69/1,256,364.23 = 588,500.78/x
  3. Step 3: Cross multiply
    910,790.69x = 1,256,364.23 × 588,500.78
  4. Step 4: Simplify right side
    910,790.69x = 739,371,320,094.77
  5. Step 5: Solve for x
    x = 739,371,320,094.77/910,790.69
  6. Step 6: Final answer
    x = 811,790.60

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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.