Home / 645,533.73-890,834.18-359,053.84

Finding the Fourth Proportional to 645,533.73, 890,834.18 and 359,053.84

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Solution

The fourth proportional to 645,533.73, 890,834.18 and 359,053.84 is: 495,492.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,533.73 : 890,834.18 = 359,053.84 : x
  2. Step 2: Convert to fraction form
    645,533.73/890,834.18 = 359,053.84/x
  3. Step 3: Cross multiply
    645,533.73x = 890,834.18 × 359,053.84
  4. Step 4: Simplify right side
    645,533.73x = 319,857,429,109.90
  5. Step 5: Solve for x
    x = 319,857,429,109.90/645,533.73
  6. Step 6: Final answer
    x = 495,492.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.