Home / 1,278,701.40-1,918,926.90-710,081.40

Finding the Fourth Proportional to 1,278,701.40, 1,918,926.90 and 710,081.40

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Solution

The fourth proportional to 1,278,701.40, 1,918,926.90 and 710,081.40 is: 1,065,607.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,701.40 : 1,918,926.90 = 710,081.40 : x
  2. Step 2: Convert to fraction form
    1,278,701.40/1,918,926.90 = 710,081.40/x
  3. Step 3: Cross multiply
    1,278,701.40x = 1,918,926.90 × 710,081.40
  4. Step 4: Simplify right side
    1,278,701.40x = 1,362,594,299,649.66
  5. Step 5: Solve for x
    x = 1,362,594,299,649.66/1,278,701.40
  6. Step 6: Final answer
    x = 1,065,607.89

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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.