Home / 830,626.68-1,146,265.53-448,653.78

Finding the Fourth Proportional to 830,626.68, 1,146,265.53 and 448,653.78

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Solution

The fourth proportional to 830,626.68, 1,146,265.53 and 448,653.78 is: 619,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,626.68 : 1,146,265.53 = 448,653.78 : x
  2. Step 2: Convert to fraction form
    830,626.68/1,146,265.53 = 448,653.78/x
  3. Step 3: Cross multiply
    830,626.68x = 1,146,265.53 × 448,653.78
  4. Step 4: Simplify right side
    830,626.68x = 514,276,362,918.20
  5. Step 5: Solve for x
    x = 514,276,362,918.20/830,626.68
  6. Step 6: Final answer
    x = 619,142.60

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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.