Home / 830,417.75-1,145,976.51-448,444.54

Finding the Fourth Proportional to 830,417.75, 1,145,976.51 and 448,444.54

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Solution

The fourth proportional to 830,417.75, 1,145,976.51 and 448,444.54 is: 618,853.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,417.75 : 1,145,976.51 = 448,444.54 : x
  2. Step 2: Convert to fraction form
    830,417.75/1,145,976.51 = 448,444.54/x
  3. Step 3: Cross multiply
    830,417.75x = 1,145,976.51 × 448,444.54
  4. Step 4: Simplify right side
    830,417.75x = 513,906,903,147.87
  5. Step 5: Solve for x
    x = 513,906,903,147.87/830,417.75
  6. Step 6: Final answer
    x = 618,853.47

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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.