Home / 773,721.90-1,160,582.85-490,286.70

Finding the Fourth Proportional to 773,721.90, 1,160,582.85 and 490,286.70

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Solution

The fourth proportional to 773,721.90, 1,160,582.85 and 490,286.70 is: 735,430.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,721.90 : 1,160,582.85 = 490,286.70 : x
  2. Step 2: Convert to fraction form
    773,721.90/1,160,582.85 = 490,286.70/x
  3. Step 3: Cross multiply
    773,721.90x = 1,160,582.85 × 490,286.70
  4. Step 4: Simplify right side
    773,721.90x = 569,018,335,603.10
  5. Step 5: Solve for x
    x = 569,018,335,603.10/773,721.90
  6. Step 6: Final answer
    x = 735,430.05

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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.