Home / 1,303,407.40-1,955,111.10-665,678.20

Finding the Fourth Proportional to 1,303,407.40, 1,955,111.10 and 665,678.20

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Solution

The fourth proportional to 1,303,407.40, 1,955,111.10 and 665,678.20 is: 998,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,407.40 : 1,955,111.10 = 665,678.20 : x
  2. Step 2: Convert to fraction form
    1,303,407.40/1,955,111.10 = 665,678.20/x
  3. Step 3: Cross multiply
    1,303,407.40x = 1,955,111.10 × 665,678.20
  4. Step 4: Simplify right side
    1,303,407.40x = 1,301,474,837,848.02
  5. Step 5: Solve for x
    x = 1,301,474,837,848.02/1,303,407.40
  6. Step 6: Final answer
    x = 998,517.30

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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.