Home / 931,088.52-1,284,903.54-528,680.52

Finding the Fourth Proportional to 931,088.52, 1,284,903.54 and 528,680.52

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Solution

The fourth proportional to 931,088.52, 1,284,903.54 and 528,680.52 is: 729,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,088.52 : 1,284,903.54 = 528,680.52 : x
  2. Step 2: Convert to fraction form
    931,088.52/1,284,903.54 = 528,680.52/x
  3. Step 3: Cross multiply
    931,088.52x = 1,284,903.54 × 528,680.52
  4. Step 4: Simplify right side
    931,088.52x = 679,303,471,677.04
  5. Step 5: Solve for x
    x = 679,303,471,677.04/931,088.52
  6. Step 6: Final answer
    x = 729,579.90

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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.