Home / 908,085.38-1,253,048.09-520,880.74

Finding the Fourth Proportional to 908,085.38, 1,253,048.09 and 520,880.74

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Solution

The fourth proportional to 908,085.38, 1,253,048.09 and 520,880.74 is: 718,752.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,085.38 : 1,253,048.09 = 520,880.74 : x
  2. Step 2: Convert to fraction form
    908,085.38/1,253,048.09 = 520,880.74/x
  3. Step 3: Cross multiply
    908,085.38x = 1,253,048.09 × 520,880.74
  4. Step 4: Simplify right side
    908,085.38x = 652,688,616,374.79
  5. Step 5: Solve for x
    x = 652,688,616,374.79/908,085.38
  6. Step 6: Final answer
    x = 718,752.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.