Home / 745,666.03-1,028,691.79-503,860.51

Finding the Fourth Proportional to 745,666.03, 1,028,691.79 and 503,860.51

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Solution

The fourth proportional to 745,666.03, 1,028,691.79 and 503,860.51 is: 695,106.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,666.03 : 1,028,691.79 = 503,860.51 : x
  2. Step 2: Convert to fraction form
    745,666.03/1,028,691.79 = 503,860.51/x
  3. Step 3: Cross multiply
    745,666.03x = 1,028,691.79 × 503,860.51
  4. Step 4: Simplify right side
    745,666.03x = 518,317,169,942.21
  5. Step 5: Solve for x
    x = 518,317,169,942.21/745,666.03
  6. Step 6: Final answer
    x = 695,106.32

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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.