Home / 898,320.19-1,239,700.66-490,439.22

Finding the Fourth Proportional to 898,320.19, 1,239,700.66 and 490,439.22

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Solution

The fourth proportional to 898,320.19, 1,239,700.66 and 490,439.22 is: 676,816.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,320.19 : 1,239,700.66 = 490,439.22 : x
  2. Step 2: Convert to fraction form
    898,320.19/1,239,700.66 = 490,439.22/x
  3. Step 3: Cross multiply
    898,320.19x = 1,239,700.66 × 490,439.22
  4. Step 4: Simplify right side
    898,320.19x = 607,997,824,723.89
  5. Step 5: Solve for x
    x = 607,997,824,723.89/898,320.19
  6. Step 6: Final answer
    x = 676,816.39

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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.