Home / 1,270,280.95-1,752,980.23-689,515.61

Finding the Fourth Proportional to 1,270,280.95, 1,752,980.23 and 689,515.61

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Solution

The fourth proportional to 1,270,280.95, 1,752,980.23 and 689,515.61 is: 951,527.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,280.95 : 1,752,980.23 = 689,515.61 : x
  2. Step 2: Convert to fraction form
    1,270,280.95/1,752,980.23 = 689,515.61/x
  3. Step 3: Cross multiply
    1,270,280.95x = 1,752,980.23 × 689,515.61
  4. Step 4: Simplify right side
    1,270,280.95x = 1,208,707,224,703.38
  5. Step 5: Solve for x
    x = 1,208,707,224,703.38/1,270,280.95
  6. Step 6: Final answer
    x = 951,527.48

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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.