Home / 718,041.37-990,903.12-395,752.29

Finding the Fourth Proportional to 718,041.37, 990,903.12 and 395,752.29

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Solution

The fourth proportional to 718,041.37, 990,903.12 and 395,752.29 is: 546,141.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,041.37 : 990,903.12 = 395,752.29 : x
  2. Step 2: Convert to fraction form
    718,041.37/990,903.12 = 395,752.29/x
  3. Step 3: Cross multiply
    718,041.37x = 990,903.12 × 395,752.29
  4. Step 4: Simplify right side
    718,041.37x = 392,152,178,908.15
  5. Step 5: Solve for x
    x = 392,152,178,908.15/718,041.37
  6. Step 6: Final answer
    x = 546,141.48

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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.