Home / 930,266.40-1,398,164.40-808,615.20

Finding the Fourth Proportional to 930,266.40, 1,398,164.40 and 808,615.20

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Solution

The fourth proportional to 930,266.40, 1,398,164.40 and 808,615.20 is: 1,215,326.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,266.40 : 1,398,164.40 = 808,615.20 : x
  2. Step 2: Convert to fraction form
    930,266.40/1,398,164.40 = 808,615.20/x
  3. Step 3: Cross multiply
    930,266.40x = 1,398,164.40 × 808,615.20
  4. Step 4: Simplify right side
    930,266.40x = 1,130,576,985,938.88
  5. Step 5: Solve for x
    x = 1,130,576,985,938.88/930,266.40
  6. Step 6: Final answer
    x = 1,215,326.05

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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.