Home / 915,459.12-1,372,851.60-316,266.48

Finding the Fourth Proportional to 915,459.12, 1,372,851.60 and 316,266.48

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Solution

The fourth proportional to 915,459.12, 1,372,851.60 and 316,266.48 is: 474,283.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,459.12 : 1,372,851.60 = 316,266.48 : x
  2. Step 2: Convert to fraction form
    915,459.12/1,372,851.60 = 316,266.48/x
  3. Step 3: Cross multiply
    915,459.12x = 1,372,851.60 × 316,266.48
  4. Step 4: Simplify right side
    915,459.12x = 434,186,943,094.37
  5. Step 5: Solve for x
    x = 434,186,943,094.37/915,459.12
  6. Step 6: Final answer
    x = 474,283.27

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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.