Home / 674,916.71-1,012,872.40-319,929.35

Finding the Fourth Proportional to 674,916.71, 1,012,872.40 and 319,929.35

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Solution

The fourth proportional to 674,916.71, 1,012,872.40 and 319,929.35 is: 480,129.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,916.71 : 1,012,872.40 = 319,929.35 : x
  2. Step 2: Convert to fraction form
    674,916.71/1,012,872.40 = 319,929.35/x
  3. Step 3: Cross multiply
    674,916.71x = 1,012,872.40 × 319,929.35
  4. Step 4: Simplify right side
    674,916.71x = 324,047,602,700.76
  5. Step 5: Solve for x
    x = 324,047,602,700.76/674,916.71
  6. Step 6: Final answer
    x = 480,129.77

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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.