Home / 772,215.40-1,158,323.10-417,921.40

Finding the Fourth Proportional to 772,215.40, 1,158,323.10 and 417,921.40

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Solution

The fourth proportional to 772,215.40, 1,158,323.10 and 417,921.40 is: 626,882.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,215.40 : 1,158,323.10 = 417,921.40 : x
  2. Step 2: Convert to fraction form
    772,215.40/1,158,323.10 = 417,921.40/x
  3. Step 3: Cross multiply
    772,215.40x = 1,158,323.10 × 417,921.40
  4. Step 4: Simplify right side
    772,215.40x = 484,088,011,604.34
  5. Step 5: Solve for x
    x = 484,088,011,604.34/772,215.40
  6. Step 6: Final answer
    x = 626,882.10

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1.5x scale

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.