Home / 1,358,071.34-2,038,064.28-638,445.90

Finding the Fourth Proportional to 1,358,071.34, 2,038,064.28 and 638,445.90

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Solution

The fourth proportional to 1,358,071.34, 2,038,064.28 and 638,445.90 is: 958,118.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,071.34 : 2,038,064.28 = 638,445.90 : x
  2. Step 2: Convert to fraction form
    1,358,071.34/2,038,064.28 = 638,445.90/x
  3. Step 3: Cross multiply
    1,358,071.34x = 2,038,064.28 × 638,445.90
  4. Step 4: Simplify right side
    1,358,071.34x = 1,301,193,783,502.45
  5. Step 5: Solve for x
    x = 1,301,193,783,502.45/1,358,071.34
  6. Step 6: Final answer
    x = 958,118.87

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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.