Home / 1,286,130.38-1,774,731.98-742,441.32

Finding the Fourth Proportional to 1,286,130.38, 1,774,731.98 and 742,441.32

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Solution

The fourth proportional to 1,286,130.38, 1,774,731.98 and 742,441.32 is: 1,024,495.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,130.38 : 1,774,731.98 = 742,441.32 : x
  2. Step 2: Convert to fraction form
    1,286,130.38/1,774,731.98 = 742,441.32/x
  3. Step 3: Cross multiply
    1,286,130.38x = 1,774,731.98 × 742,441.32
  4. Step 4: Simplify right side
    1,286,130.38x = 1,317,634,355,733.52
  5. Step 5: Solve for x
    x = 1,317,634,355,733.52/1,286,130.38
  6. Step 6: Final answer
    x = 1,024,495.17

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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.