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Finding the Fourth Proportional to 566,457.68, 781,681.56 and 311,759.84

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Solution

The fourth proportional to 566,457.68, 781,681.56 and 311,759.84 is: 430,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,457.68 : 781,681.56 = 311,759.84 : x
  2. Step 2: Convert to fraction form
    566,457.68/781,681.56 = 311,759.84/x
  3. Step 3: Cross multiply
    566,457.68x = 781,681.56 × 311,759.84
  4. Step 4: Simplify right side
    566,457.68x = 243,696,918,076.55
  5. Step 5: Solve for x
    x = 243,696,918,076.55/566,457.68
  6. Step 6: Final answer
    x = 430,212.05

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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.