Home / 749,430.12-1,034,238.27-409,898.34

Finding the Fourth Proportional to 749,430.12, 1,034,238.27 and 409,898.34

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Solution

The fourth proportional to 749,430.12, 1,034,238.27 and 409,898.34 is: 565,673.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,430.12 : 1,034,238.27 = 409,898.34 : x
  2. Step 2: Convert to fraction form
    749,430.12/1,034,238.27 = 409,898.34/x
  3. Step 3: Cross multiply
    749,430.12x = 1,034,238.27 × 409,898.34
  4. Step 4: Simplify right side
    749,430.12x = 423,932,550,037.47
  5. Step 5: Solve for x
    x = 423,932,550,037.47/749,430.12
  6. Step 6: Final answer
    x = 565,673.22

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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.