Home / 828,492.50-1,143,308.79-465,916.25

Finding the Fourth Proportional to 828,492.50, 1,143,308.79 and 465,916.25

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Solution

The fourth proportional to 828,492.50, 1,143,308.79 and 465,916.25 is: 642,958.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,492.50 : 1,143,308.79 = 465,916.25 : x
  2. Step 2: Convert to fraction form
    828,492.50/1,143,308.79 = 465,916.25/x
  3. Step 3: Cross multiply
    828,492.50x = 1,143,308.79 × 465,916.25
  4. Step 4: Simplify right side
    828,492.50x = 532,686,146,887.11
  5. Step 5: Solve for x
    x = 532,686,146,887.11/828,492.50
  6. Step 6: Final answer
    x = 642,958.32

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1.5x scale

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.