Home / 662,947.35-914,873.40-401,308.68

Finding the Fourth Proportional to 662,947.35, 914,873.40 and 401,308.68

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Solution

The fourth proportional to 662,947.35, 914,873.40 and 401,308.68 is: 553,809.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,947.35 : 914,873.40 = 401,308.68 : x
  2. Step 2: Convert to fraction form
    662,947.35/914,873.40 = 401,308.68/x
  3. Step 3: Cross multiply
    662,947.35x = 914,873.40 × 401,308.68
  4. Step 4: Simplify right side
    662,947.35x = 367,146,636,521.11
  5. Step 5: Solve for x
    x = 367,146,636,521.11/662,947.35
  6. Step 6: Final answer
    x = 553,809.64

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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.