Home / 745,502.40-1,029,175.20-505,051.20

Finding the Fourth Proportional to 745,502.40, 1,029,175.20 and 505,051.20

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Solution

The fourth proportional to 745,502.40, 1,029,175.20 and 505,051.20 is: 697,229.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,502.40 : 1,029,175.20 = 505,051.20 : x
  2. Step 2: Convert to fraction form
    745,502.40/1,029,175.20 = 505,051.20/x
  3. Step 3: Cross multiply
    745,502.40x = 1,029,175.20 × 505,051.20
  4. Step 4: Simplify right side
    745,502.40x = 519,786,169,770.24
  5. Step 5: Solve for x
    x = 519,786,169,770.24/745,502.40
  6. Step 6: Final answer
    x = 697,229.37

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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.