Home / 459,322.71-688,939.52-139,477.35

Finding the Fourth Proportional to 459,322.71, 688,939.52 and 139,477.35

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Solution

The fourth proportional to 459,322.71, 688,939.52 and 139,477.35 is: 209,202.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,322.71 : 688,939.52 = 139,477.35 : x
  2. Step 2: Convert to fraction form
    459,322.71/688,939.52 = 139,477.35/x
  3. Step 3: Cross multiply
    459,322.71x = 688,939.52 × 139,477.35
  4. Step 4: Simplify right side
    459,322.71x = 96,091,458,647.05
  5. Step 5: Solve for x
    x = 96,091,458,647.05/459,322.71
  6. Step 6: Final answer
    x = 209,202.50

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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.