Home / 1,389,436.70-1,917,422.63-753,532.70

Finding the Fourth Proportional to 1,389,436.70, 1,917,422.63 and 753,532.70

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Solution

The fourth proportional to 1,389,436.70, 1,917,422.63 and 753,532.70 is: 1,039,875.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,436.70 : 1,917,422.63 = 753,532.70 : x
  2. Step 2: Convert to fraction form
    1,389,436.70/1,917,422.63 = 753,532.70/x
  3. Step 3: Cross multiply
    1,389,436.70x = 1,917,422.63 × 753,532.70
  4. Step 4: Simplify right side
    1,389,436.70x = 1,444,840,638,070.22
  5. Step 5: Solve for x
    x = 1,444,840,638,070.22/1,389,436.70
  6. Step 6: Final answer
    x = 1,039,875.11

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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.