Home / 828,492.76-1,143,309.14-465,916.50

Finding the Fourth Proportional to 828,492.76, 1,143,309.14 and 465,916.50

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Solution

The fourth proportional to 828,492.76, 1,143,309.14 and 465,916.50 is: 642,958.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,492.76 : 1,143,309.14 = 465,916.50 : x
  2. Step 2: Convert to fraction form
    828,492.76/1,143,309.14 = 465,916.50/x
  3. Step 3: Cross multiply
    828,492.76x = 1,143,309.14 × 465,916.50
  4. Step 4: Simplify right side
    828,492.76x = 532,686,592,926.81
  5. Step 5: Solve for x
    x = 532,686,592,926.81/828,492.76
  6. Step 6: Final answer
    x = 642,958.66

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Double scale
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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.