Home / 1,047,495.32-1,445,502.85-640,278.98

Finding the Fourth Proportional to 1,047,495.32, 1,445,502.85 and 640,278.98

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Solution

The fourth proportional to 1,047,495.32, 1,445,502.85 and 640,278.98 is: 883,560.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,495.32 : 1,445,502.85 = 640,278.98 : x
  2. Step 2: Convert to fraction form
    1,047,495.32/1,445,502.85 = 640,278.98/x
  3. Step 3: Cross multiply
    1,047,495.32x = 1,445,502.85 × 640,278.98
  4. Step 4: Simplify right side
    1,047,495.32x = 925,525,090,385.09
  5. Step 5: Solve for x
    x = 925,525,090,385.09/1,047,495.32
  6. Step 6: Final answer
    x = 883,560.12

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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.