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Finding the Fourth Proportional to 404,941.20, 607,411.80 and 284,218.80

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Solution

The fourth proportional to 404,941.20, 607,411.80 and 284,218.80 is: 426,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,941.20 : 607,411.80 = 284,218.80 : x
  2. Step 2: Convert to fraction form
    404,941.20/607,411.80 = 284,218.80/x
  3. Step 3: Cross multiply
    404,941.20x = 607,411.80 × 284,218.80
  4. Step 4: Simplify right side
    404,941.20x = 172,637,852,901.84
  5. Step 5: Solve for x
    x = 172,637,852,901.84/404,941.20
  6. Step 6: Final answer
    x = 426,328.20

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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.