Home / 930,557.40-1,395,843.08-509,603.64

Finding the Fourth Proportional to 930,557.40, 1,395,843.08 and 509,603.64

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Solution

The fourth proportional to 930,557.40, 1,395,843.08 and 509,603.64 is: 764,409.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,557.40 : 1,395,843.08 = 509,603.64 : x
  2. Step 2: Convert to fraction form
    930,557.40/1,395,843.08 = 509,603.64/x
  3. Step 3: Cross multiply
    930,557.40x = 1,395,843.08 × 509,603.64
  4. Step 4: Simplify right side
    930,557.40x = 711,326,714,436.81
  5. Step 5: Solve for x
    x = 711,326,714,436.81/930,557.40
  6. Step 6: Final answer
    x = 764,409.28

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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.