Home / 731,978.81-1,010,130.58-409,688.92

Finding the Fourth Proportional to 731,978.81, 1,010,130.58 and 409,688.92

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Solution

The fourth proportional to 731,978.81, 1,010,130.58 and 409,688.92 is: 565,370.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,978.81 : 1,010,130.58 = 409,688.92 : x
  2. Step 2: Convert to fraction form
    731,978.81/1,010,130.58 = 409,688.92/x
  3. Step 3: Cross multiply
    731,978.81x = 1,010,130.58 × 409,688.92
  4. Step 4: Simplify right side
    731,978.81x = 413,839,308,153.95
  5. Step 5: Solve for x
    x = 413,839,308,153.95/731,978.81
  6. Step 6: Final answer
    x = 565,370.61

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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.