Home / 472,623.64-709,046.40-290,457.46

Finding the Fourth Proportional to 472,623.64, 709,046.40 and 290,457.46

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Solution

The fourth proportional to 472,623.64, 709,046.40 and 290,457.46 is: 435,754.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,623.64 : 709,046.40 = 290,457.46 : x
  2. Step 2: Convert to fraction form
    472,623.64/709,046.40 = 290,457.46/x
  3. Step 3: Cross multiply
    472,623.64x = 709,046.40 × 290,457.46
  4. Step 4: Simplify right side
    472,623.64x = 205,947,816,366.14
  5. Step 5: Solve for x
    x = 205,947,816,366.14/472,623.64
  6. Step 6: Final answer
    x = 435,754.37

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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.