Home / 1,219,276.12-1,683,422.64-761,088.28

Finding the Fourth Proportional to 1,219,276.12, 1,683,422.64 and 761,088.28

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Solution

The fourth proportional to 1,219,276.12, 1,683,422.64 and 761,088.28 is: 1,050,814.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,276.12 : 1,683,422.64 = 761,088.28 : x
  2. Step 2: Convert to fraction form
    1,219,276.12/1,683,422.64 = 761,088.28/x
  3. Step 3: Cross multiply
    1,219,276.12x = 1,683,422.64 × 761,088.28
  4. Step 4: Simplify right side
    1,219,276.12x = 1,281,233,241,590.66
  5. Step 5: Solve for x
    x = 1,281,233,241,590.66/1,219,276.12
  6. Step 6: Final answer
    x = 1,050,814.68

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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.