Home / 558,117-837,176.34-258,434.28

Finding the Fourth Proportional to 558,117, 837,176.34 and 258,434.28

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Solution

The fourth proportional to 558,117, 837,176.34 and 258,434.28 is: 387,651.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,117 : 837,176.34 = 258,434.28 : x
  2. Step 2: Convert to fraction form
    558,117/837,176.34 = 258,434.28/x
  3. Step 3: Cross multiply
    558,117x = 837,176.34 × 258,434.28
  4. Step 4: Simplify right side
    558,117x = 216,355,064,660.94
  5. Step 5: Solve for x
    x = 216,355,064,660.94/558,117
  6. Step 6: Final answer
    x = 387,651.81

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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.