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Finding the Fourth Proportional to 829,603.20, 1,243,483.20 and 455,894.40

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Solution

The fourth proportional to 829,603.20, 1,243,483.20 and 455,894.40 is: 683,335.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,603.20 : 1,243,483.20 = 455,894.40 : x
  2. Step 2: Convert to fraction form
    829,603.20/1,243,483.20 = 455,894.40/x
  3. Step 3: Cross multiply
    829,603.20x = 1,243,483.20 × 455,894.40
  4. Step 4: Simplify right side
    829,603.20x = 566,897,027,374.08
  5. Step 5: Solve for x
    x = 566,897,027,374.08/829,603.20
  6. Step 6: Final answer
    x = 683,335.15

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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.