Home / 923,904.90-1,385,988.57-284,261.63

Finding the Fourth Proportional to 923,904.90, 1,385,988.57 and 284,261.63

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Solution

The fourth proportional to 923,904.90, 1,385,988.57 and 284,261.63 is: 426,432.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,904.90 : 1,385,988.57 = 284,261.63 : x
  2. Step 2: Convert to fraction form
    923,904.90/1,385,988.57 = 284,261.63/x
  3. Step 3: Cross multiply
    923,904.90x = 1,385,988.57 × 284,261.63
  4. Step 4: Simplify right side
    923,904.90x = 393,983,363,139.63
  5. Step 5: Solve for x
    x = 393,983,363,139.63/923,904.90
  6. Step 6: Final answer
    x = 426,432.81

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Double scale
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Similar ratio
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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.