Home / 1,213,730.51-1,674,001.65-778,189.46

Finding the Fourth Proportional to 1,213,730.51, 1,674,001.65 and 778,189.46

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Solution

The fourth proportional to 1,213,730.51, 1,674,001.65 and 778,189.46 is: 1,073,294.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,730.51 : 1,674,001.65 = 778,189.46 : x
  2. Step 2: Convert to fraction form
    1,213,730.51/1,674,001.65 = 778,189.46/x
  3. Step 3: Cross multiply
    1,213,730.51x = 1,674,001.65 × 778,189.46
  4. Step 4: Simplify right side
    1,213,730.51x = 1,302,690,440,052.61
  5. Step 5: Solve for x
    x = 1,302,690,440,052.61/1,213,730.51
  6. Step 6: Final answer
    x = 1,073,294.63

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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.