Home / 750,684.40-1,036,018.96-428,443.32

Finding the Fourth Proportional to 750,684.40, 1,036,018.96 and 428,443.32

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Solution

The fourth proportional to 750,684.40, 1,036,018.96 and 428,443.32 is: 591,294.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,684.40 : 1,036,018.96 = 428,443.32 : x
  2. Step 2: Convert to fraction form
    750,684.40/1,036,018.96 = 428,443.32/x
  3. Step 3: Cross multiply
    750,684.40x = 1,036,018.96 × 428,443.32
  4. Step 4: Simplify right side
    750,684.40x = 443,875,402,805.35
  5. Step 5: Solve for x
    x = 443,875,402,805.35/750,684.40
  6. Step 6: Final answer
    x = 591,294.29

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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.