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Finding the Fourth Proportional to 424,941.40, 637,412.10 and 400,009.60

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Solution

The fourth proportional to 424,941.40, 637,412.10 and 400,009.60 is: 600,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,941.40 : 637,412.10 = 400,009.60 : x
  2. Step 2: Convert to fraction form
    424,941.40/637,412.10 = 400,009.60/x
  3. Step 3: Cross multiply
    424,941.40x = 637,412.10 × 400,009.60
  4. Step 4: Simplify right side
    424,941.40x = 254,970,959,156.16
  5. Step 5: Solve for x
    x = 254,970,959,156.16/424,941.40
  6. Step 6: Final answer
    x = 600,014.40

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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.