Home / 898,864.81-1,240,426.06-490,966.91

Finding the Fourth Proportional to 898,864.81, 1,240,426.06 and 490,966.91

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Solution

The fourth proportional to 898,864.81, 1,240,426.06 and 490,966.91 is: 677,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,864.81 : 1,240,426.06 = 490,966.91 : x
  2. Step 2: Convert to fraction form
    898,864.81/1,240,426.06 = 490,966.91/x
  3. Step 3: Cross multiply
    898,864.81x = 1,240,426.06 × 490,966.91
  4. Step 4: Simplify right side
    898,864.81x = 609,008,144,786.96
  5. Step 5: Solve for x
    x = 609,008,144,786.96/898,864.81
  6. Step 6: Final answer
    x = 677,530.30

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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.