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Finding the Fourth Proportional to 403,225.90, 604,838.86 and 328,576.30

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Solution

The fourth proportional to 403,225.90, 604,838.86 and 328,576.30 is: 492,864.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,225.90 : 604,838.86 = 328,576.30 : x
  2. Step 2: Convert to fraction form
    403,225.90/604,838.86 = 328,576.30/x
  3. Step 3: Cross multiply
    403,225.90x = 604,838.86 × 328,576.30
  4. Step 4: Simplify right side
    403,225.90x = 198,735,714,715.02
  5. Step 5: Solve for x
    x = 198,735,714,715.02/403,225.90
  6. Step 6: Final answer
    x = 492,864.46

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1.5x scale

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.