Home / 898,787.79-1,240,336.53-490,901.36

Finding the Fourth Proportional to 898,787.79, 1,240,336.53 and 490,901.36

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Solution

The fourth proportional to 898,787.79, 1,240,336.53 and 490,901.36 is: 677,448.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,787.79 : 1,240,336.53 = 490,901.36 : x
  2. Step 2: Convert to fraction form
    898,787.79/1,240,336.53 = 490,901.36/x
  3. Step 3: Cross multiply
    898,787.79x = 1,240,336.53 × 490,901.36
  4. Step 4: Simplify right side
    898,787.79x = 608,882,883,233.00
  5. Step 5: Solve for x
    x = 608,882,883,233.00/898,787.79
  6. Step 6: Final answer
    x = 677,448.99

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Double scale
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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.