Home / 1,147,465.76-1,583,381.20-638,085.92

Finding the Fourth Proportional to 1,147,465.76, 1,583,381.20 and 638,085.92

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Solution

The fourth proportional to 1,147,465.76, 1,583,381.20 and 638,085.92 is: 880,490.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,465.76 : 1,583,381.20 = 638,085.92 : x
  2. Step 2: Convert to fraction form
    1,147,465.76/1,583,381.20 = 638,085.92/x
  3. Step 3: Cross multiply
    1,147,465.76x = 1,583,381.20 × 638,085.92
  4. Step 4: Simplify right side
    1,147,465.76x = 1,010,333,249,712.70
  5. Step 5: Solve for x
    x = 1,010,333,249,712.70/1,147,465.76
  6. Step 6: Final answer
    x = 880,490.98

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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.