Home / 679,965.40-1,019,948.10-306,717.40

Finding the Fourth Proportional to 679,965.40, 1,019,948.10 and 306,717.40

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Solution

The fourth proportional to 679,965.40, 1,019,948.10 and 306,717.40 is: 460,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,965.40 : 1,019,948.10 = 306,717.40 : x
  2. Step 2: Convert to fraction form
    679,965.40/1,019,948.10 = 306,717.40/x
  3. Step 3: Cross multiply
    679,965.40x = 1,019,948.10 × 306,717.40
  4. Step 4: Simplify right side
    679,965.40x = 312,835,829,366.94
  5. Step 5: Solve for x
    x = 312,835,829,366.94/679,965.40
  6. Step 6: Final answer
    x = 460,076.10

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Double scale
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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.