Home / 750,784.34-1,036,081.47-406,620.07

Finding the Fourth Proportional to 750,784.34, 1,036,081.47 and 406,620.07

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Solution

The fourth proportional to 750,784.34, 1,036,081.47 and 406,620.07 is: 561,135.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,784.34 : 1,036,081.47 = 406,620.07 : x
  2. Step 2: Convert to fraction form
    750,784.34/1,036,081.47 = 406,620.07/x
  3. Step 3: Cross multiply
    750,784.34x = 1,036,081.47 × 406,620.07
  4. Step 4: Simplify right side
    750,784.34x = 421,291,517,266.90
  5. Step 5: Solve for x
    x = 421,291,517,266.90/750,784.34
  6. Step 6: Final answer
    x = 561,135.19

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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.