Home / 678,070.51-1,017,089.35-172,632.58

Finding the Fourth Proportional to 678,070.51, 1,017,089.35 and 172,632.58

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Solution

The fourth proportional to 678,070.51, 1,017,089.35 and 172,632.58 is: 258,944.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,070.51 : 1,017,089.35 = 172,632.58 : x
  2. Step 2: Convert to fraction form
    678,070.51/1,017,089.35 = 172,632.58/x
  3. Step 3: Cross multiply
    678,070.51x = 1,017,089.35 × 172,632.58
  4. Step 4: Simplify right side
    678,070.51x = 175,582,758,581.02
  5. Step 5: Solve for x
    x = 175,582,758,581.02/678,070.51
  6. Step 6: Final answer
    x = 258,944.69

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1.5x scale

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.