Home / 1,019,631.51-1,528,449.75-421,097.00

Finding the Fourth Proportional to 1,019,631.51, 1,528,449.75 and 421,097.00

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Solution

The fourth proportional to 1,019,631.51, 1,528,449.75 and 421,097.00 is: 631,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,631.51 : 1,528,449.75 = 421,097.00 : x
  2. Step 2: Convert to fraction form
    1,019,631.51/1,528,449.75 = 421,097.00/x
  3. Step 3: Cross multiply
    1,019,631.51x = 1,528,449.75 × 421,097.00
  4. Step 4: Simplify right side
    1,019,631.51x = 643,625,596,733.50
  5. Step 5: Solve for x
    x = 643,625,596,733.50/1,019,631.51
  6. Step 6: Final answer
    x = 631,233.53

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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.