Home / 756,073.40-1,042,680.44-551,800.76

Finding the Fourth Proportional to 756,073.40, 1,042,680.44 and 551,800.76

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Solution

The fourth proportional to 756,073.40, 1,042,680.44 and 551,800.76 is: 760,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,073.40 : 1,042,680.44 = 551,800.76 : x
  2. Step 2: Convert to fraction form
    756,073.40/1,042,680.44 = 551,800.76/x
  3. Step 3: Cross multiply
    756,073.40x = 1,042,680.44 × 551,800.76
  4. Step 4: Simplify right side
    756,073.40x = 575,351,863,215.34
  5. Step 5: Solve for x
    x = 575,351,863,215.34/756,073.40
  6. Step 6: Final answer
    x = 760,973.55

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Half scale
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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.