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Finding the Fourth Proportional to 841,385, 1,262,077.50 and 250,409

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Solution

The fourth proportional to 841,385, 1,262,077.50 and 250,409 is: 375,613.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,385 : 1,262,077.50 = 250,409 : x
  2. Step 2: Convert to fraction form
    841,385/1,262,077.50 = 250,409/x
  3. Step 3: Cross multiply
    841,385x = 1,262,077.50 × 250,409
  4. Step 4: Simplify right side
    841,385x = 316,035,564,697.50
  5. Step 5: Solve for x
    x = 316,035,564,697.50/841,385
  6. Step 6: Final answer
    x = 375,613.50

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1.5x scale

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.