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Finding the Fourth Proportional to 630,792.12, 870,363.18 and 362,468.28

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Solution

The fourth proportional to 630,792.12, 870,363.18 and 362,468.28 is: 500,131.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,792.12 : 870,363.18 = 362,468.28 : x
  2. Step 2: Convert to fraction form
    630,792.12/870,363.18 = 362,468.28/x
  3. Step 3: Cross multiply
    630,792.12x = 870,363.18 × 362,468.28
  4. Step 4: Simplify right side
    630,792.12x = 315,479,044,829.93
  5. Step 5: Solve for x
    x = 315,479,044,829.93/630,792.12
  6. Step 6: Final answer
    x = 500,131.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.