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Finding the Fourth Proportional to 970,880.20, 1,455,801.90 and 409,280.20

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Solution

The fourth proportional to 970,880.20, 1,455,801.90 and 409,280.20 is: 613,701.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,880.20 : 1,455,801.90 = 409,280.20 : x
  2. Step 2: Convert to fraction form
    970,880.20/1,455,801.90 = 409,280.20/x
  3. Step 3: Cross multiply
    970,880.20x = 1,455,801.90 × 409,280.20
  4. Step 4: Simplify right side
    970,880.20x = 595,830,892,792.38
  5. Step 5: Solve for x
    x = 595,830,892,792.38/970,880.20
  6. Step 6: Final answer
    x = 613,701.77

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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.