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Finding the Fourth Proportional to 774,316.64, 1,068,457.68 and 451,952.80

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Solution

The fourth proportional to 774,316.64, 1,068,457.68 and 451,952.80 is: 623,636.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,316.64 : 1,068,457.68 = 451,952.80 : x
  2. Step 2: Convert to fraction form
    774,316.64/1,068,457.68 = 451,952.80/x
  3. Step 3: Cross multiply
    774,316.64x = 1,068,457.68 × 451,952.80
  4. Step 4: Simplify right side
    774,316.64x = 482,892,440,157.50
  5. Step 5: Solve for x
    x = 482,892,440,157.50/774,316.64
  6. Step 6: Final answer
    x = 623,636.91

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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.