Home / 830,430.29-1,145,993.79-448,457.04

Finding the Fourth Proportional to 830,430.29, 1,145,993.79 and 448,457.04

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Solution

The fourth proportional to 830,430.29, 1,145,993.79 and 448,457.04 is: 618,870.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,430.29 : 1,145,993.79 = 448,457.04 : x
  2. Step 2: Convert to fraction form
    830,430.29/1,145,993.79 = 448,457.04/x
  3. Step 3: Cross multiply
    830,430.29x = 1,145,993.79 × 448,457.04
  4. Step 4: Simplify right side
    830,430.29x = 513,928,982,921.78
  5. Step 5: Solve for x
    x = 513,928,982,921.78/830,430.29
  6. Step 6: Final answer
    x = 618,870.71

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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.