Home / 984,779.80-1,477,169.70-319,931.80

Finding the Fourth Proportional to 984,779.80, 1,477,169.70 and 319,931.80

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Solution

The fourth proportional to 984,779.80, 1,477,169.70 and 319,931.80 is: 479,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,779.80 : 1,477,169.70 = 319,931.80 : x
  2. Step 2: Convert to fraction form
    984,779.80/1,477,169.70 = 319,931.80/x
  3. Step 3: Cross multiply
    984,779.80x = 1,477,169.70 × 319,931.80
  4. Step 4: Simplify right side
    984,779.80x = 472,593,561,026.46
  5. Step 5: Solve for x
    x = 472,593,561,026.46/984,779.80
  6. Step 6: Final answer
    x = 479,897.70

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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.