Home / 1,147,485.06-1,583,585.51-638,176.50

Finding the Fourth Proportional to 1,147,485.06, 1,583,585.51 and 638,176.50

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Solution

The fourth proportional to 1,147,485.06, 1,583,585.51 and 638,176.50 is: 880,714.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,485.06 : 1,583,585.51 = 638,176.50 : x
  2. Step 2: Convert to fraction form
    1,147,485.06/1,583,585.51 = 638,176.50/x
  3. Step 3: Cross multiply
    1,147,485.06x = 1,583,585.51 × 638,176.50
  4. Step 4: Simplify right side
    1,147,485.06x = 1,010,607,055,031.63
  5. Step 5: Solve for x
    x = 1,010,607,055,031.63/1,147,485.06
  6. Step 6: Final answer
    x = 880,714.78

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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.