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Finding the Fourth Proportional to 874,903.84, 1,207,322.64 and 492,953.20

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Solution

The fourth proportional to 874,903.84, 1,207,322.64 and 492,953.20 is: 680,250.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,903.84 : 1,207,322.64 = 492,953.20 : x
  2. Step 2: Convert to fraction form
    874,903.84/1,207,322.64 = 492,953.20/x
  3. Step 3: Cross multiply
    874,903.84x = 1,207,322.64 × 492,953.20
  4. Step 4: Simplify right side
    874,903.84x = 595,153,558,820.45
  5. Step 5: Solve for x
    x = 595,153,558,820.45/874,903.84
  6. Step 6: Final answer
    x = 680,250.25

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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.