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Finding the Fourth Proportional to 636,496.62, 880,678.34 and 554,994.71

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Solution

The fourth proportional to 636,496.62, 880,678.34 and 554,994.71 is: 767,909.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,496.62 : 880,678.34 = 554,994.71 : x
  2. Step 2: Convert to fraction form
    636,496.62/880,678.34 = 554,994.71/x
  3. Step 3: Cross multiply
    636,496.62x = 880,678.34 × 554,994.71
  4. Step 4: Simplify right side
    636,496.62x = 488,771,812,733.22
  5. Step 5: Solve for x
    x = 488,771,812,733.22/636,496.62
  6. Step 6: Final answer
    x = 767,909.52

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Double scale
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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.