Home / 917,230.40-1,375,975.20-286,078.40

Finding the Fourth Proportional to 917,230.40, 1,375,975.20 and 286,078.40

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Solution

The fourth proportional to 917,230.40, 1,375,975.20 and 286,078.40 is: 429,158.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,230.40 : 1,375,975.20 = 286,078.40 : x
  2. Step 2: Convert to fraction form
    917,230.40/1,375,975.20 = 286,078.40/x
  3. Step 3: Cross multiply
    917,230.40x = 1,375,975.20 × 286,078.40
  4. Step 4: Simplify right side
    917,230.40x = 393,636,783,655.68
  5. Step 5: Solve for x
    x = 393,636,783,655.68/917,230.40
  6. Step 6: Final answer
    x = 429,158.02

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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.