Home / 1,161,330.81-1,602,582.36-645,118.16

Finding the Fourth Proportional to 1,161,330.81, 1,602,582.36 and 645,118.16

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Solution

The fourth proportional to 1,161,330.81, 1,602,582.36 and 645,118.16 is: 890,232.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,330.81 : 1,602,582.36 = 645,118.16 : x
  2. Step 2: Convert to fraction form
    1,161,330.81/1,602,582.36 = 645,118.16/x
  3. Step 3: Cross multiply
    1,161,330.81x = 1,602,582.36 × 645,118.16
  4. Step 4: Simplify right side
    1,161,330.81x = 1,033,854,983,331.66
  5. Step 5: Solve for x
    x = 1,033,854,983,331.66/1,161,330.81
  6. Step 6: Final answer
    x = 890,232.98

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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.