Home / 731,782.12-1,009,901.65-409,489.40

Finding the Fourth Proportional to 731,782.12, 1,009,901.65 and 409,489.40

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Solution

The fourth proportional to 731,782.12, 1,009,901.65 and 409,489.40 is: 565,119.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,782.12 : 1,009,901.65 = 409,489.40 : x
  2. Step 2: Convert to fraction form
    731,782.12/1,009,901.65 = 409,489.40/x
  3. Step 3: Cross multiply
    731,782.12x = 1,009,901.65 × 409,489.40
  4. Step 4: Simplify right side
    731,782.12x = 413,544,020,717.51
  5. Step 5: Solve for x
    x = 413,544,020,717.51/731,782.12
  6. Step 6: Final answer
    x = 565,119.06

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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.