Home / 917,215.43-1,263,674.48-709,770.43

Finding the Fourth Proportional to 917,215.43, 1,263,674.48 and 709,770.43

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Solution

The fourth proportional to 917,215.43, 1,263,674.48 and 709,770.43 is: 977,871.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,215.43 : 1,263,674.48 = 709,770.43 : x
  2. Step 2: Convert to fraction form
    917,215.43/1,263,674.48 = 709,770.43/x
  3. Step 3: Cross multiply
    917,215.43x = 1,263,674.48 × 709,770.43
  4. Step 4: Simplify right side
    917,215.43x = 896,918,779,049.63
  5. Step 5: Solve for x
    x = 896,918,779,049.63/917,215.43
  6. Step 6: Final answer
    x = 977,871.45

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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.