Home / 664,316.60-916,786.10-373,946.90

Finding the Fourth Proportional to 664,316.60, 916,786.10 and 373,946.90

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Solution

The fourth proportional to 664,316.60, 916,786.10 and 373,946.90 is: 516,063.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,316.60 : 916,786.10 = 373,946.90 : x
  2. Step 2: Convert to fraction form
    664,316.60/916,786.10 = 373,946.90/x
  3. Step 3: Cross multiply
    664,316.60x = 916,786.10 × 373,946.90
  4. Step 4: Simplify right side
    664,316.60x = 342,829,320,058.09
  5. Step 5: Solve for x
    x = 342,829,320,058.09/664,316.60
  6. Step 6: Final answer
    x = 516,063.15

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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.