Home / 692,639.40-1,039,736.70-535,564.20

Finding the Fourth Proportional to 692,639.40, 1,039,736.70 and 535,564.20

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Solution

The fourth proportional to 692,639.40, 1,039,736.70 and 535,564.20 is: 803,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,639.40 : 1,039,736.70 = 535,564.20 : x
  2. Step 2: Convert to fraction form
    692,639.40/1,039,736.70 = 535,564.20/x
  3. Step 3: Cross multiply
    692,639.40x = 1,039,736.70 × 535,564.20
  4. Step 4: Simplify right side
    692,639.40x = 556,845,753,946.14
  5. Step 5: Solve for x
    x = 556,845,753,946.14/692,639.40
  6. Step 6: Final answer
    x = 803,947.56

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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.