Home / 1,242,443.62-1,710,340.95-919,545.22

Finding the Fourth Proportional to 1,242,443.62, 1,710,340.95 and 919,545.22

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Solution

The fourth proportional to 1,242,443.62, 1,710,340.95 and 919,545.22 is: 1,265,840.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,443.62 : 1,710,340.95 = 919,545.22 : x
  2. Step 2: Convert to fraction form
    1,242,443.62/1,710,340.95 = 919,545.22/x
  3. Step 3: Cross multiply
    1,242,443.62x = 1,710,340.95 × 919,545.22
  4. Step 4: Simplify right side
    1,242,443.62x = 1,572,735,845,142.76
  5. Step 5: Solve for x
    x = 1,572,735,845,142.76/1,242,443.62
  6. Step 6: Final answer
    x = 1,265,840.82

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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.