Home / 818,401.93-1,129,349.79-450,807.02

Finding the Fourth Proportional to 818,401.93, 1,129,349.79 and 450,807.02

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Solution

The fourth proportional to 818,401.93, 1,129,349.79 and 450,807.02 is: 622,088.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,401.93 : 1,129,349.79 = 450,807.02 : x
  2. Step 2: Convert to fraction form
    818,401.93/1,129,349.79 = 450,807.02/x
  3. Step 3: Cross multiply
    818,401.93x = 1,129,349.79 × 450,807.02
  4. Step 4: Simplify right side
    818,401.93x = 509,118,811,955.84
  5. Step 5: Solve for x
    x = 509,118,811,955.84/818,401.93
  6. Step 6: Final answer
    x = 622,088.97

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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.