Home / 684,473.40-1,026,780.52-258,368.14

Finding the Fourth Proportional to 684,473.40, 1,026,780.52 and 258,368.14

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Solution

The fourth proportional to 684,473.40, 1,026,780.52 and 258,368.14 is: 387,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,473.40 : 1,026,780.52 = 258,368.14 : x
  2. Step 2: Convert to fraction form
    684,473.40/1,026,780.52 = 258,368.14/x
  3. Step 3: Cross multiply
    684,473.40x = 1,026,780.52 × 258,368.14
  4. Step 4: Simplify right side
    684,473.40x = 265,287,373,140.63
  5. Step 5: Solve for x
    x = 265,287,373,140.63/684,473.40
  6. Step 6: Final answer
    x = 387,578.79

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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.