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Finding the Fourth Proportional to 473,999.40, 710,999.10 and 306,037.80

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Solution

The fourth proportional to 473,999.40, 710,999.10 and 306,037.80 is: 459,056.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,999.40 : 710,999.10 = 306,037.80 : x
  2. Step 2: Convert to fraction form
    473,999.40/710,999.10 = 306,037.80/x
  3. Step 3: Cross multiply
    473,999.40x = 710,999.10 × 306,037.80
  4. Step 4: Simplify right side
    473,999.40x = 217,592,600,365.98
  5. Step 5: Solve for x
    x = 217,592,600,365.98/473,999.40
  6. Step 6: Final answer
    x = 459,056.70

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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.