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Finding the Fourth Proportional to 713,885.54, 985,320.45 and 558,530.37

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Solution

The fourth proportional to 713,885.54, 985,320.45 and 558,530.37 is: 770,895.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,885.54 : 985,320.45 = 558,530.37 : x
  2. Step 2: Convert to fraction form
    713,885.54/985,320.45 = 558,530.37/x
  3. Step 3: Cross multiply
    713,885.54x = 985,320.45 × 558,530.37
  4. Step 4: Simplify right side
    713,885.54x = 550,331,395,507.07
  5. Step 5: Solve for x
    x = 550,331,395,507.07/713,885.54
  6. Step 6: Final answer
    x = 770,895.85

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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.