Home / 665,535.12-918,417.96-379,096.08

Finding the Fourth Proportional to 665,535.12, 918,417.96 and 379,096.08

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Solution

The fourth proportional to 665,535.12, 918,417.96 and 379,096.08 is: 523,140.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,535.12 : 918,417.96 = 379,096.08 : x
  2. Step 2: Convert to fraction form
    665,535.12/918,417.96 = 379,096.08/x
  3. Step 3: Cross multiply
    665,535.12x = 918,417.96 × 379,096.08
  4. Step 4: Simplify right side
    665,535.12x = 348,168,648,437.60
  5. Step 5: Solve for x
    x = 348,168,648,437.60/665,535.12
  6. Step 6: Final answer
    x = 523,140.91

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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.