Home / 740,314.80-1,110,731.40-319,892.40

Finding the Fourth Proportional to 740,314.80, 1,110,731.40 and 319,892.40

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Solution

The fourth proportional to 740,314.80, 1,110,731.40 and 319,892.40 is: 479,950.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,314.80 : 1,110,731.40 = 319,892.40 : x
  2. Step 2: Convert to fraction form
    740,314.80/1,110,731.40 = 319,892.40/x
  3. Step 3: Cross multiply
    740,314.80x = 1,110,731.40 × 319,892.40
  4. Step 4: Simplify right side
    740,314.80x = 355,314,533,301.36
  5. Step 5: Solve for x
    x = 355,314,533,301.36/740,314.80
  6. Step 6: Final answer
    x = 479,950.60

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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.