Home / 1,200,673.79-1,656,929.28-656,809.46

Finding the Fourth Proportional to 1,200,673.79, 1,656,929.28 and 656,809.46

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Solution

The fourth proportional to 1,200,673.79, 1,656,929.28 and 656,809.46 is: 906,396.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,673.79 : 1,656,929.28 = 656,809.46 : x
  2. Step 2: Convert to fraction form
    1,200,673.79/1,656,929.28 = 656,809.46/x
  3. Step 3: Cross multiply
    1,200,673.79x = 1,656,929.28 × 656,809.46
  4. Step 4: Simplify right side
    1,200,673.79x = 1,088,286,817,370.34
  5. Step 5: Solve for x
    x = 1,088,286,817,370.34/1,200,673.79
  6. Step 6: Final answer
    x = 906,396.75

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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.