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Finding the Fourth Proportional to 559,459.80, 837,221.40 and 512,220.60

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Solution

The fourth proportional to 559,459.80, 837,221.40 and 512,220.60 is: 766,528.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,459.80 : 837,221.40 = 512,220.60 : x
  2. Step 2: Convert to fraction form
    559,459.80/837,221.40 = 512,220.60/x
  3. Step 3: Cross multiply
    559,459.80x = 837,221.40 × 512,220.60
  4. Step 4: Simplify right side
    559,459.80x = 428,842,047,840.84
  5. Step 5: Solve for x
    x = 428,842,047,840.84/559,459.80
  6. Step 6: Final answer
    x = 766,528.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.