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Finding the Fourth Proportional to 503,407.40, 755,111.10 and 304,341.80

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Solution

The fourth proportional to 503,407.40, 755,111.10 and 304,341.80 is: 456,512.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,407.40 : 755,111.10 = 304,341.80 : x
  2. Step 2: Convert to fraction form
    503,407.40/755,111.10 = 304,341.80/x
  3. Step 3: Cross multiply
    503,407.40x = 755,111.10 × 304,341.80
  4. Step 4: Simplify right side
    503,407.40x = 229,811,871,373.98
  5. Step 5: Solve for x
    x = 229,811,871,373.98/503,407.40
  6. Step 6: Final answer
    x = 456,512.70

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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.