Home / 1,390,877.40-1,917,526.14-1,189,095.96

Finding the Fourth Proportional to 1,390,877.40, 1,917,526.14 and 1,189,095.96

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Solution

The fourth proportional to 1,390,877.40, 1,917,526.14 and 1,189,095.96 is: 1,639,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,877.40 : 1,917,526.14 = 1,189,095.96 : x
  2. Step 2: Convert to fraction form
    1,390,877.40/1,917,526.14 = 1,189,095.96/x
  3. Step 3: Cross multiply
    1,390,877.40x = 1,917,526.14 × 1,189,095.96
  4. Step 4: Simplify right side
    1,390,877.40x = 2,280,122,586,268.39
  5. Step 5: Solve for x
    x = 2,280,122,586,268.39/1,390,877.40
  6. Step 6: Final answer
    x = 1,639,341.17

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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.