Home / 1,223,265.10-1,688,095.86-671,990.03

Finding the Fourth Proportional to 1,223,265.10, 1,688,095.86 and 671,990.03

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Solution

The fourth proportional to 1,223,265.10, 1,688,095.86 and 671,990.03 is: 927,340.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,265.10 : 1,688,095.86 = 671,990.03 : x
  2. Step 2: Convert to fraction form
    1,223,265.10/1,688,095.86 = 671,990.03/x
  3. Step 3: Cross multiply
    1,223,265.10x = 1,688,095.86 × 671,990.03
  4. Step 4: Simplify right side
    1,223,265.10x = 1,134,383,587,604.28
  5. Step 5: Solve for x
    x = 1,134,383,587,604.28/1,223,265.10
  6. Step 6: Final answer
    x = 927,340.76

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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.