Home / 1,223,299.13-1,688,152.80-686,755.13

Finding the Fourth Proportional to 1,223,299.13, 1,688,152.80 and 686,755.13

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Solution

The fourth proportional to 1,223,299.13, 1,688,152.80 and 686,755.13 is: 947,722.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,299.13 : 1,688,152.80 = 686,755.13 : x
  2. Step 2: Convert to fraction form
    1,223,299.13/1,688,152.80 = 686,755.13/x
  3. Step 3: Cross multiply
    1,223,299.13x = 1,688,152.80 × 686,755.13
  4. Step 4: Simplify right side
    1,223,299.13x = 1,159,347,587,183.10
  5. Step 5: Solve for x
    x = 1,159,347,587,183.10/1,223,299.13
  6. Step 6: Final answer
    x = 947,722.08

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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.