Home / 993,769.07-1,490,339.79-319,700.16

Finding the Fourth Proportional to 993,769.07, 1,490,339.79 and 319,700.16

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Solution

The fourth proportional to 993,769.07, 1,490,339.79 and 319,700.16 is: 479,449.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,769.07 : 1,490,339.79 = 319,700.16 : x
  2. Step 2: Convert to fraction form
    993,769.07/1,490,339.79 = 319,700.16/x
  3. Step 3: Cross multiply
    993,769.07x = 1,490,339.79 × 319,700.16
  4. Step 4: Simplify right side
    993,769.07x = 476,461,869,317.37
  5. Step 5: Solve for x
    x = 476,461,869,317.37/993,769.07
  6. Step 6: Final answer
    x = 479,449.29

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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.