Home / 690,360.16-1,035,658.32-316,415.20

Finding the Fourth Proportional to 690,360.16, 1,035,658.32 and 316,415.20

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Solution

The fourth proportional to 690,360.16, 1,035,658.32 and 316,415.20 is: 474,676.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,360.16 : 1,035,658.32 = 316,415.20 : x
  2. Step 2: Convert to fraction form
    690,360.16/1,035,658.32 = 316,415.20/x
  3. Step 3: Cross multiply
    690,360.16x = 1,035,658.32 × 316,415.20
  4. Step 4: Simplify right side
    690,360.16x = 327,698,034,454.46
  5. Step 5: Solve for x
    x = 327,698,034,454.46/690,360.16
  6. Step 6: Final answer
    x = 474,676.92

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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.