Home / 1,407,809.18-2,111,713.73-649,426.28

Finding the Fourth Proportional to 1,407,809.18, 2,111,713.73 and 649,426.28

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Solution

The fourth proportional to 1,407,809.18, 2,111,713.73 and 649,426.28 is: 974,139.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,809.18 : 2,111,713.73 = 649,426.28 : x
  2. Step 2: Convert to fraction form
    1,407,809.18/2,111,713.73 = 649,426.28/x
  3. Step 3: Cross multiply
    1,407,809.18x = 2,111,713.73 × 649,426.28
  4. Step 4: Simplify right side
    1,407,809.18x = 1,371,402,394,130.98
  5. Step 5: Solve for x
    x = 1,371,402,394,130.98/1,407,809.18
  6. Step 6: Final answer
    x = 974,139.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.