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Finding the Fourth Proportional to 626,835.12, 865,032.48 and 358,563.12

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Solution

The fourth proportional to 626,835.12, 865,032.48 and 358,563.12 is: 494,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,835.12 : 865,032.48 = 358,563.12 : x
  2. Step 2: Convert to fraction form
    626,835.12/865,032.48 = 358,563.12/x
  3. Step 3: Cross multiply
    626,835.12x = 865,032.48 × 358,563.12
  4. Step 4: Simplify right side
    626,835.12x = 310,168,744,930.14
  5. Step 5: Solve for x
    x = 310,168,744,930.14/626,835.12
  6. Step 6: Final answer
    x = 494,817.11

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1.5x scale

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.