Home / 935,345.20-1,403,430.90-455,306.80

Finding the Fourth Proportional to 935,345.20, 1,403,430.90 and 455,306.80

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Solution

The fourth proportional to 935,345.20, 1,403,430.90 and 455,306.80 is: 683,161.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,345.20 : 1,403,430.90 = 455,306.80 : x
  2. Step 2: Convert to fraction form
    935,345.20/1,403,430.90 = 455,306.80/x
  3. Step 3: Cross multiply
    935,345.20x = 1,403,430.90 × 455,306.80
  4. Step 4: Simplify right side
    935,345.20x = 638,991,632,100.12
  5. Step 5: Solve for x
    x = 638,991,632,100.12/935,345.20
  6. Step 6: Final answer
    x = 683,161.29

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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.