Home / 1,231,386.96-1,699,483.95-687,558

Finding the Fourth Proportional to 1,231,386.96, 1,699,483.95 and 687,558

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Solution

The fourth proportional to 1,231,386.96, 1,699,483.95 and 687,558 is: 948,924.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,386.96 : 1,699,483.95 = 687,558 : x
  2. Step 2: Convert to fraction form
    1,231,386.96/1,699,483.95 = 687,558/x
  3. Step 3: Cross multiply
    1,231,386.96x = 1,699,483.95 × 687,558
  4. Step 4: Simplify right side
    1,231,386.96x = 1,168,493,785,694.10
  5. Step 5: Solve for x
    x = 1,168,493,785,694.10/1,231,386.96
  6. Step 6: Final answer
    x = 948,924.93

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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.