Home / 757,385.25-1,045,283.52-553,334.05

Finding the Fourth Proportional to 757,385.25, 1,045,283.52 and 553,334.05

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Solution

The fourth proportional to 757,385.25, 1,045,283.52 and 553,334.05 is: 763,668.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,385.25 : 1,045,283.52 = 553,334.05 : x
  2. Step 2: Convert to fraction form
    757,385.25/1,045,283.52 = 553,334.05/x
  3. Step 3: Cross multiply
    757,385.25x = 1,045,283.52 × 553,334.05
  4. Step 4: Simplify right side
    757,385.25x = 578,390,960,906.65
  5. Step 5: Solve for x
    x = 578,390,960,906.65/757,385.25
  6. Step 6: Final answer
    x = 763,668.11

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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.