Home / 946,746.90-1,420,127.55-315,659.70

Finding the Fourth Proportional to 946,746.90, 1,420,127.55 and 315,659.70

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Solution

The fourth proportional to 946,746.90, 1,420,127.55 and 315,659.70 is: 473,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,746.90 : 1,420,127.55 = 315,659.70 : x
  2. Step 2: Convert to fraction form
    946,746.90/1,420,127.55 = 315,659.70/x
  3. Step 3: Cross multiply
    946,746.90x = 1,420,127.55 × 315,659.70
  4. Step 4: Simplify right side
    946,746.90x = 448,277,036,394.74
  5. Step 5: Solve for x
    x = 448,277,036,394.74/946,746.90
  6. Step 6: Final answer
    x = 473,491.95

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Double scale
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Similar ratio
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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.