Home / 1,154,699.70-1,593,421.29-638,423.76

Finding the Fourth Proportional to 1,154,699.70, 1,593,421.29 and 638,423.76

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Solution

The fourth proportional to 1,154,699.70, 1,593,421.29 and 638,423.76 is: 880,989.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,699.70 : 1,593,421.29 = 638,423.76 : x
  2. Step 2: Convert to fraction form
    1,154,699.70/1,593,421.29 = 638,423.76/x
  3. Step 3: Cross multiply
    1,154,699.70x = 1,593,421.29 × 638,423.76
  4. Step 4: Simplify right side
    1,154,699.70x = 1,017,278,011,225.85
  5. Step 5: Solve for x
    x = 1,017,278,011,225.85/1,154,699.70
  6. Step 6: Final answer
    x = 880,989.24

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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.