Home / 1,219,278.16-1,683,425.36-761,090.32

Finding the Fourth Proportional to 1,219,278.16, 1,683,425.36 and 761,090.32

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Solution

The fourth proportional to 1,219,278.16, 1,683,425.36 and 761,090.32 is: 1,050,817.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,278.16 : 1,683,425.36 = 761,090.32 : x
  2. Step 2: Convert to fraction form
    1,219,278.16/1,683,425.36 = 761,090.32/x
  3. Step 3: Cross multiply
    1,219,278.16x = 1,683,425.36 × 761,090.32
  4. Step 4: Simplify right side
    1,219,278.16x = 1,281,238,745,938.52
  5. Step 5: Solve for x
    x = 1,281,238,745,938.52/1,219,278.16
  6. Step 6: Final answer
    x = 1,050,817.43

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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.