Home / 993,683.16-1,490,315.76-319,824.72

Finding the Fourth Proportional to 993,683.16, 1,490,315.76 and 319,824.72

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Solution

The fourth proportional to 993,683.16, 1,490,315.76 and 319,824.72 is: 479,669.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,683.16 : 1,490,315.76 = 319,824.72 : x
  2. Step 2: Convert to fraction form
    993,683.16/1,490,315.76 = 319,824.72/x
  3. Step 3: Cross multiply
    993,683.16x = 1,490,315.76 × 319,824.72
  4. Step 4: Simplify right side
    993,683.16x = 476,639,820,653.59
  5. Step 5: Solve for x
    x = 476,639,820,653.59/993,683.16
  6. Step 6: Final answer
    x = 479,669.82

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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.