Home / 1,087,243.60-1,631,448.60-456,221.20

Finding the Fourth Proportional to 1,087,243.60, 1,631,448.60 and 456,221.20

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Solution

The fourth proportional to 1,087,243.60, 1,631,448.60 and 456,221.20 is: 684,576.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,243.60 : 1,631,448.60 = 456,221.20 : x
  2. Step 2: Convert to fraction form
    1,087,243.60/1,631,448.60 = 456,221.20/x
  3. Step 3: Cross multiply
    1,087,243.60x = 1,631,448.60 × 456,221.20
  4. Step 4: Simplify right side
    1,087,243.60x = 744,301,438,030.32
  5. Step 5: Solve for x
    x = 744,301,438,030.32/1,087,243.60
  6. Step 6: Final answer
    x = 684,576.52

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Double scale
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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.