Home / 1,433,343.47-1,978,095.72-821,598.05

Finding the Fourth Proportional to 1,433,343.47, 1,978,095.72 and 821,598.05

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Solution

The fourth proportional to 1,433,343.47, 1,978,095.72 and 821,598.05 is: 1,133,852.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,343.47 : 1,978,095.72 = 821,598.05 : x
  2. Step 2: Convert to fraction form
    1,433,343.47/1,978,095.72 = 821,598.05/x
  3. Step 3: Cross multiply
    1,433,343.47x = 1,978,095.72 × 821,598.05
  4. Step 4: Simplify right side
    1,433,343.47x = 1,625,199,586,265.35
  5. Step 5: Solve for x
    x = 1,625,199,586,265.35/1,433,343.47
  6. Step 6: Final answer
    x = 1,133,852.16

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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.