Home / 903,929.68-1,355,894.52-398,382.76

Finding the Fourth Proportional to 903,929.68, 1,355,894.52 and 398,382.76

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Solution

The fourth proportional to 903,929.68, 1,355,894.52 and 398,382.76 is: 597,574.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,929.68 : 1,355,894.52 = 398,382.76 : x
  2. Step 2: Convert to fraction form
    903,929.68/1,355,894.52 = 398,382.76/x
  3. Step 3: Cross multiply
    903,929.68x = 1,355,894.52 × 398,382.76
  4. Step 4: Simplify right side
    903,929.68x = 540,165,001,146.48
  5. Step 5: Solve for x
    x = 540,165,001,146.48/903,929.68
  6. Step 6: Final answer
    x = 597,574.14

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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.