Home / 742,914.30-1,114,043.40-293,485.80

Finding the Fourth Proportional to 742,914.30, 1,114,043.40 and 293,485.80

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Solution

The fourth proportional to 742,914.30, 1,114,043.40 and 293,485.80 is: 440,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,914.30 : 1,114,043.40 = 293,485.80 : x
  2. Step 2: Convert to fraction form
    742,914.30/1,114,043.40 = 293,485.80/x
  3. Step 3: Cross multiply
    742,914.30x = 1,114,043.40 × 293,485.80
  4. Step 4: Simplify right side
    742,914.30x = 326,955,918,483.72
  5. Step 5: Solve for x
    x = 326,955,918,483.72/742,914.30
  6. Step 6: Final answer
    x = 440,099.10

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Double scale
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Similar ratio
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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.