Home / 713,696.02-984,913.92-391,386.84

Finding the Fourth Proportional to 713,696.02, 984,913.92 and 391,386.84

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Solution

The fourth proportional to 713,696.02, 984,913.92 and 391,386.84 is: 540,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,696.02 : 984,913.92 = 391,386.84 : x
  2. Step 2: Convert to fraction form
    713,696.02/984,913.92 = 391,386.84/x
  3. Step 3: Cross multiply
    713,696.02x = 984,913.92 × 391,386.84
  4. Step 4: Simplify right side
    713,696.02x = 385,482,346,820.81
  5. Step 5: Solve for x
    x = 385,482,346,820.81/713,696.02
  6. Step 6: Final answer
    x = 540,121.19

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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.