Home / 983,912.40-1,475,868.60-319,064.40

Finding the Fourth Proportional to 983,912.40, 1,475,868.60 and 319,064.40

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Solution

The fourth proportional to 983,912.40, 1,475,868.60 and 319,064.40 is: 478,596.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,912.40 : 1,475,868.60 = 319,064.40 : x
  2. Step 2: Convert to fraction form
    983,912.40/1,475,868.60 = 319,064.40/x
  3. Step 3: Cross multiply
    983,912.40x = 1,475,868.60 × 319,064.40
  4. Step 4: Simplify right side
    983,912.40x = 470,897,129,337.84
  5. Step 5: Solve for x
    x = 470,897,129,337.84/983,912.40
  6. Step 6: Final answer
    x = 478,596.60

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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.