Home / 773,088.47-1,066,825.93-428,920.73

Finding the Fourth Proportional to 773,088.47, 1,066,825.93 and 428,920.73

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Solution

The fourth proportional to 773,088.47, 1,066,825.93 and 428,920.73 is: 591,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,088.47 : 1,066,825.93 = 428,920.73 : x
  2. Step 2: Convert to fraction form
    773,088.47/1,066,825.93 = 428,920.73/x
  3. Step 3: Cross multiply
    773,088.47x = 1,066,825.93 × 428,920.73
  4. Step 4: Simplify right side
    773,088.47x = 457,583,756,678.53
  5. Step 5: Solve for x
    x = 457,583,756,678.53/773,088.47
  6. Step 6: Final answer
    x = 591,890.55

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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.