Home / 1,492,153.86-2,236,346.31-638,210.55

Finding the Fourth Proportional to 1,492,153.86, 2,236,346.31 and 638,210.55

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Solution

The fourth proportional to 1,492,153.86, 2,236,346.31 and 638,210.55 is: 956,509.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492,153.86 : 2,236,346.31 = 638,210.55 : x
  2. Step 2: Convert to fraction form
    1,492,153.86/2,236,346.31 = 638,210.55/x
  3. Step 3: Cross multiply
    1,492,153.86x = 2,236,346.31 × 638,210.55
  4. Step 4: Simplify right side
    1,492,153.86x = 1,427,259,808,495.57
  5. Step 5: Solve for x
    x = 1,427,259,808,495.57/1,492,153.86
  6. Step 6: Final answer
    x = 956,509.81

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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.