Home / 765,120.69-1,054,192.19-506,558.97

Finding the Fourth Proportional to 765,120.69, 1,054,192.19 and 506,558.97

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Solution

The fourth proportional to 765,120.69, 1,054,192.19 and 506,558.97 is: 697,942.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,120.69 : 1,054,192.19 = 506,558.97 : x
  2. Step 2: Convert to fraction form
    765,120.69/1,054,192.19 = 506,558.97/x
  3. Step 3: Cross multiply
    765,120.69x = 1,054,192.19 × 506,558.97
  4. Step 4: Simplify right side
    765,120.69x = 534,010,507,415.65
  5. Step 5: Solve for x
    x = 534,010,507,415.65/765,120.69
  6. Step 6: Final answer
    x = 697,942.84

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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.