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Finding the Fourth Proportional to 651,692.80, 977,490.60 and 272,515.60

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Solution

The fourth proportional to 651,692.80, 977,490.60 and 272,515.60 is: 408,753.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,692.80 : 977,490.60 = 272,515.60 : x
  2. Step 2: Convert to fraction form
    651,692.80/977,490.60 = 272,515.60/x
  3. Step 3: Cross multiply
    651,692.80x = 977,490.60 × 272,515.60
  4. Step 4: Simplify right side
    651,692.80x = 266,381,437,353.36
  5. Step 5: Solve for x
    x = 266,381,437,353.36/651,692.80
  6. Step 6: Final answer
    x = 408,753.08

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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.