Home / 510,353.23-704,281.88-280,905.60

Finding the Fourth Proportional to 510,353.23, 704,281.88 and 280,905.60

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Solution

The fourth proportional to 510,353.23, 704,281.88 and 280,905.60 is: 387,646.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,353.23 : 704,281.88 = 280,905.60 : x
  2. Step 2: Convert to fraction form
    510,353.23/704,281.88 = 280,905.60/x
  3. Step 3: Cross multiply
    510,353.23x = 704,281.88 × 280,905.60
  4. Step 4: Simplify right side
    510,353.23x = 197,836,724,070.53
  5. Step 5: Solve for x
    x = 197,836,724,070.53/510,353.23
  6. Step 6: Final answer
    x = 387,646.66

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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.