Home / 745,328.88-1,028,699.46-473,713.20

Finding the Fourth Proportional to 745,328.88, 1,028,699.46 and 473,713.20

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Solution

The fourth proportional to 745,328.88, 1,028,699.46 and 473,713.20 is: 653,816.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,328.88 : 1,028,699.46 = 473,713.20 : x
  2. Step 2: Convert to fraction form
    745,328.88/1,028,699.46 = 473,713.20/x
  3. Step 3: Cross multiply
    745,328.88x = 1,028,699.46 × 473,713.20
  4. Step 4: Simplify right side
    745,328.88x = 487,308,513,034.87
  5. Step 5: Solve for x
    x = 487,308,513,034.87/745,328.88
  6. Step 6: Final answer
    x = 653,816.76

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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.