Home / 854,048.64-1,280,637.72-285,225.12

Finding the Fourth Proportional to 854,048.64, 1,280,637.72 and 285,225.12

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Solution

The fourth proportional to 854,048.64, 1,280,637.72 and 285,225.12 is: 427,692.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,048.64 : 1,280,637.72 = 285,225.12 : x
  2. Step 2: Convert to fraction form
    854,048.64/1,280,637.72 = 285,225.12/x
  3. Step 3: Cross multiply
    854,048.64x = 1,280,637.72 × 285,225.12
  4. Step 4: Simplify right side
    854,048.64x = 365,270,047,363.53
  5. Step 5: Solve for x
    x = 365,270,047,363.53/854,048.64
  6. Step 6: Final answer
    x = 427,692.32

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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.