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Finding the Fourth Proportional to 505,900.80, 758,332.80 and 295,430.40

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Solution

The fourth proportional to 505,900.80, 758,332.80 and 295,430.40 is: 442,842.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,900.80 : 758,332.80 = 295,430.40 : x
  2. Step 2: Convert to fraction form
    505,900.80/758,332.80 = 295,430.40/x
  3. Step 3: Cross multiply
    505,900.80x = 758,332.80 × 295,430.40
  4. Step 4: Simplify right side
    505,900.80x = 224,034,562,437.12
  5. Step 5: Solve for x
    x = 224,034,562,437.12/505,900.80
  6. Step 6: Final answer
    x = 442,842.87

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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.