Home / 1,312,804.16-1,812,274.56-768,864.32

Finding the Fourth Proportional to 1,312,804.16, 1,812,274.56 and 768,864.32

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Solution

The fourth proportional to 1,312,804.16, 1,812,274.56 and 768,864.32 is: 1,061,386.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,804.16 : 1,812,274.56 = 768,864.32 : x
  2. Step 2: Convert to fraction form
    1,312,804.16/1,812,274.56 = 768,864.32/x
  3. Step 3: Cross multiply
    1,312,804.16x = 1,812,274.56 × 768,864.32
  4. Step 4: Simplify right side
    1,312,804.16x = 1,393,393,247,227.70
  5. Step 5: Solve for x
    x = 1,393,393,247,227.70/1,312,804.16
  6. Step 6: Final answer
    x = 1,061,386.98

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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.