Home / 831,295.04-1,147,199.90-487,048.60

Finding the Fourth Proportional to 831,295.04, 1,147,199.90 and 487,048.60

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Solution

The fourth proportional to 831,295.04, 1,147,199.90 and 487,048.60 is: 672,134.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,295.04 : 1,147,199.90 = 487,048.60 : x
  2. Step 2: Convert to fraction form
    831,295.04/1,147,199.90 = 487,048.60/x
  3. Step 3: Cross multiply
    831,295.04x = 1,147,199.90 × 487,048.60
  4. Step 4: Simplify right side
    831,295.04x = 558,742,104,213.90
  5. Step 5: Solve for x
    x = 558,742,104,213.90/831,295.04
  6. Step 6: Final answer
    x = 672,134.54

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Double scale
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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.