Home / 425,122.29-586,710.18-317,505.51

Finding the Fourth Proportional to 425,122.29, 586,710.18 and 317,505.51

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Solution

The fourth proportional to 425,122.29, 586,710.18 and 317,505.51 is: 438,188.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,122.29 : 586,710.18 = 317,505.51 : x
  2. Step 2: Convert to fraction form
    425,122.29/586,710.18 = 317,505.51/x
  3. Step 3: Cross multiply
    425,122.29x = 586,710.18 × 317,505.51
  4. Step 4: Simplify right side
    425,122.29x = 186,283,714,923.09
  5. Step 5: Solve for x
    x = 186,283,714,923.09/425,122.29
  6. Step 6: Final answer
    x = 438,188.54

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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.