Home / 745,048.89-1,028,189.48-527,646.51

Finding the Fourth Proportional to 745,048.89, 1,028,189.48 and 527,646.51

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Solution

The fourth proportional to 745,048.89, 1,028,189.48 and 527,646.51 is: 728,167.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,048.89 : 1,028,189.48 = 527,646.51 : x
  2. Step 2: Convert to fraction form
    745,048.89/1,028,189.48 = 527,646.51/x
  3. Step 3: Cross multiply
    745,048.89x = 1,028,189.48 × 527,646.51
  4. Step 4: Simplify right side
    745,048.89x = 542,520,588,102.48
  5. Step 5: Solve for x
    x = 542,520,588,102.48/745,048.89
  6. Step 6: Final answer
    x = 728,167.77

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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.