Home / 831,501.40-1,247,252.10-359,109.40

Finding the Fourth Proportional to 831,501.40, 1,247,252.10 and 359,109.40

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Solution

The fourth proportional to 831,501.40, 1,247,252.10 and 359,109.40 is: 538,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,501.40 : 1,247,252.10 = 359,109.40 : x
  2. Step 2: Convert to fraction form
    831,501.40/1,247,252.10 = 359,109.40/x
  3. Step 3: Cross multiply
    831,501.40x = 1,247,252.10 × 359,109.40
  4. Step 4: Simplify right side
    831,501.40x = 447,899,953,279.74
  5. Step 5: Solve for x
    x = 447,899,953,279.74/831,501.40
  6. Step 6: Final answer
    x = 538,664.10

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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.