Home / 988,710.90-1,483,065.73-357,477.09

Finding the Fourth Proportional to 988,710.90, 1,483,065.73 and 357,477.09

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Solution

The fourth proportional to 988,710.90, 1,483,065.73 and 357,477.09 is: 536,215.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,710.90 : 1,483,065.73 = 357,477.09 : x
  2. Step 2: Convert to fraction form
    988,710.90/1,483,065.73 = 357,477.09/x
  3. Step 3: Cross multiply
    988,710.90x = 1,483,065.73 × 357,477.09
  4. Step 4: Simplify right side
    988,710.90x = 530,162,021,439.13
  5. Step 5: Solve for x
    x = 530,162,021,439.13/988,710.90
  6. Step 6: Final answer
    x = 536,215.41

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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.