Home / 1,021,079.12-1,531,619.04-459,457.52

Finding the Fourth Proportional to 1,021,079.12, 1,531,619.04 and 459,457.52

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Solution

The fourth proportional to 1,021,079.12, 1,531,619.04 and 459,457.52 is: 689,186.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,079.12 : 1,531,619.04 = 459,457.52 : x
  2. Step 2: Convert to fraction form
    1,021,079.12/1,531,619.04 = 459,457.52/x
  3. Step 3: Cross multiply
    1,021,079.12x = 1,531,619.04 × 459,457.52
  4. Step 4: Simplify right side
    1,021,079.12x = 703,713,885,703.18
  5. Step 5: Solve for x
    x = 703,713,885,703.18/1,021,079.12
  6. Step 6: Final answer
    x = 689,186.44

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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.