Home / 716,621.79-989,345.97-475,230.25

Finding the Fourth Proportional to 716,621.79, 989,345.97 and 475,230.25

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Solution

The fourth proportional to 716,621.79, 989,345.97 and 475,230.25 is: 656,088.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,621.79 : 989,345.97 = 475,230.25 : x
  2. Step 2: Convert to fraction form
    716,621.79/989,345.97 = 475,230.25/x
  3. Step 3: Cross multiply
    716,621.79x = 989,345.97 × 475,230.25
  4. Step 4: Simplify right side
    716,621.79x = 470,167,125,336.71
  5. Step 5: Solve for x
    x = 470,167,125,336.71/716,621.79
  6. Step 6: Final answer
    x = 656,088.23

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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.