Home / 1,275,705.30-1,913,510.09-316,164.06

Finding the Fourth Proportional to 1,275,705.30, 1,913,510.09 and 316,164.06

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Solution

The fourth proportional to 1,275,705.30, 1,913,510.09 and 316,164.06 is: 474,234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,705.30 : 1,913,510.09 = 316,164.06 : x
  2. Step 2: Convert to fraction form
    1,275,705.30/1,913,510.09 = 316,164.06/x
  3. Step 3: Cross multiply
    1,275,705.30x = 1,913,510.09 × 316,164.06
  4. Step 4: Simplify right side
    1,275,705.30x = 604,983,118,905.37
  5. Step 5: Solve for x
    x = 604,983,118,905.37/1,275,705.30
  6. Step 6: Final answer
    x = 474,234.23

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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.