Home / 983,364.87-1,475,275.49-309,428.66

Finding the Fourth Proportional to 983,364.87, 1,475,275.49 and 309,428.66

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Solution

The fourth proportional to 983,364.87, 1,475,275.49 and 309,428.66 is: 464,214.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,364.87 : 1,475,275.49 = 309,428.66 : x
  2. Step 2: Convert to fraction form
    983,364.87/1,475,275.49 = 309,428.66/x
  3. Step 3: Cross multiply
    983,364.87x = 1,475,275.49 × 309,428.66
  4. Step 4: Simplify right side
    983,364.87x = 456,492,518,001.54
  5. Step 5: Solve for x
    x = 456,492,518,001.54/983,364.87
  6. Step 6: Final answer
    x = 464,214.79

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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.