Home / 1,316,530.32-1,816,801.44-712,918.32

Finding the Fourth Proportional to 1,316,530.32, 1,816,801.44 and 712,918.32

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Solution

The fourth proportional to 1,316,530.32, 1,816,801.44 and 712,918.32 is: 983,821.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,530.32 : 1,816,801.44 = 712,918.32 : x
  2. Step 2: Convert to fraction form
    1,316,530.32/1,816,801.44 = 712,918.32/x
  3. Step 3: Cross multiply
    1,316,530.32x = 1,816,801.44 × 712,918.32
  4. Step 4: Simplify right side
    1,316,530.32x = 1,295,231,030,378.38
  5. Step 5: Solve for x
    x = 1,295,231,030,378.38/1,316,530.32
  6. Step 6: Final answer
    x = 983,821.65

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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.