Home / 729,295.56-1,006,478.42-407,068.47

Finding the Fourth Proportional to 729,295.56, 1,006,478.42 and 407,068.47

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Solution

The fourth proportional to 729,295.56, 1,006,478.42 and 407,068.47 is: 561,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,295.56 : 1,006,478.42 = 407,068.47 : x
  2. Step 2: Convert to fraction form
    729,295.56/1,006,478.42 = 407,068.47/x
  3. Step 3: Cross multiply
    729,295.56x = 1,006,478.42 × 407,068.47
  4. Step 4: Simplify right side
    729,295.56x = 409,705,628,482.08
  5. Step 5: Solve for x
    x = 409,705,628,482.08/729,295.56
  6. Step 6: Final answer
    x = 561,782.70

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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.