Home / 744,946.40-1,028,047.56-405,436.16

Finding the Fourth Proportional to 744,946.40, 1,028,047.56 and 405,436.16

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Solution

The fourth proportional to 744,946.40, 1,028,047.56 and 405,436.16 is: 559,513.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,946.40 : 1,028,047.56 = 405,436.16 : x
  2. Step 2: Convert to fraction form
    744,946.40/1,028,047.56 = 405,436.16/x
  3. Step 3: Cross multiply
    744,946.40x = 1,028,047.56 × 405,436.16
  4. Step 4: Simplify right side
    744,946.40x = 416,807,655,023.77
  5. Step 5: Solve for x
    x = 416,807,655,023.77/744,946.40
  6. Step 6: Final answer
    x = 559,513.62

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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.