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Finding the Fourth Proportional to 630,574.24, 870,546 and 437,262.88

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Solution

The fourth proportional to 630,574.24, 870,546 and 437,262.88 is: 603,667.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,574.24 : 870,546 = 437,262.88 : x
  2. Step 2: Convert to fraction form
    630,574.24/870,546 = 437,262.88/x
  3. Step 3: Cross multiply
    630,574.24x = 870,546 × 437,262.88
  4. Step 4: Simplify right side
    630,574.24x = 380,657,451,132.48
  5. Step 5: Solve for x
    x = 380,657,451,132.48/630,574.24
  6. Step 6: Final answer
    x = 603,667.94

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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.