Home / 764,802.09-1,147,312.29-284,988.98

Finding the Fourth Proportional to 764,802.09, 1,147,312.29 and 284,988.98

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Solution

The fourth proportional to 764,802.09, 1,147,312.29 and 284,988.98 is: 427,524.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,802.09 : 1,147,312.29 = 284,988.98 : x
  2. Step 2: Convert to fraction form
    764,802.09/1,147,312.29 = 284,988.98/x
  3. Step 3: Cross multiply
    764,802.09x = 1,147,312.29 × 284,988.98
  4. Step 4: Simplify right side
    764,802.09x = 326,971,352,107.06
  5. Step 5: Solve for x
    x = 326,971,352,107.06/764,802.09
  6. Step 6: Final answer
    x = 427,524.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.