Home / 745,133.77-1,028,142.88-473,245.93

Finding the Fourth Proportional to 745,133.77, 1,028,142.88 and 473,245.93

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Solution

The fourth proportional to 745,133.77, 1,028,142.88 and 473,245.93 is: 652,989.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,133.77 : 1,028,142.88 = 473,245.93 : x
  2. Step 2: Convert to fraction form
    745,133.77/1,028,142.88 = 473,245.93/x
  3. Step 3: Cross multiply
    745,133.77x = 1,028,142.88 × 473,245.93
  4. Step 4: Simplify right side
    745,133.77x = 486,564,433,418.48
  5. Step 5: Solve for x
    x = 486,564,433,418.48/745,133.77
  6. Step 6: Final answer
    x = 652,989.37

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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.