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Finding the Fourth Proportional to 658,263.04, 908,397.79 and 356,457.04

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Solution

The fourth proportional to 658,263.04, 908,397.79 and 356,457.04 is: 491,907.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,263.04 : 908,397.79 = 356,457.04 : x
  2. Step 2: Convert to fraction form
    658,263.04/908,397.79 = 356,457.04/x
  3. Step 3: Cross multiply
    658,263.04x = 908,397.79 × 356,457.04
  4. Step 4: Simplify right side
    658,263.04x = 323,804,784,203.81
  5. Step 5: Solve for x
    x = 323,804,784,203.81/658,263.04
  6. Step 6: Final answer
    x = 491,907.89

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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.