Home / 913,297.20-1,369,945.80-282,404.40

Finding the Fourth Proportional to 913,297.20, 1,369,945.80 and 282,404.40

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Solution

The fourth proportional to 913,297.20, 1,369,945.80 and 282,404.40 is: 423,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,297.20 : 1,369,945.80 = 282,404.40 : x
  2. Step 2: Convert to fraction form
    913,297.20/1,369,945.80 = 282,404.40/x
  3. Step 3: Cross multiply
    913,297.20x = 1,369,945.80 × 282,404.40
  4. Step 4: Simplify right side
    913,297.20x = 386,878,721,681.52
  5. Step 5: Solve for x
    x = 386,878,721,681.52/913,297.20
  6. Step 6: Final answer
    x = 423,606.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.