Home / 1,275,089.82-1,759,623.95-702,128.63

Finding the Fourth Proportional to 1,275,089.82, 1,759,623.95 and 702,128.63

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Solution

The fourth proportional to 1,275,089.82, 1,759,623.95 and 702,128.63 is: 968,937.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,089.82 : 1,759,623.95 = 702,128.63 : x
  2. Step 2: Convert to fraction form
    1,275,089.82/1,759,623.95 = 702,128.63/x
  3. Step 3: Cross multiply
    1,275,089.82x = 1,759,623.95 × 702,128.63
  4. Step 4: Simplify right side
    1,275,089.82x = 1,235,482,341,019.93
  5. Step 5: Solve for x
    x = 1,235,482,341,019.93/1,275,089.82
  6. Step 6: Final answer
    x = 968,937.50

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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.