Home / 1,223,815.36-1,688,985.12-707,591.20

Finding the Fourth Proportional to 1,223,815.36, 1,688,985.12 and 707,591.20

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Solution

The fourth proportional to 1,223,815.36, 1,688,985.12 and 707,591.20 is: 976,545.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,815.36 : 1,688,985.12 = 707,591.20 : x
  2. Step 2: Convert to fraction form
    1,223,815.36/1,688,985.12 = 707,591.20/x
  3. Step 3: Cross multiply
    1,223,815.36x = 1,688,985.12 × 707,591.20
  4. Step 4: Simplify right side
    1,223,815.36x = 1,195,111,007,842.94
  5. Step 5: Solve for x
    x = 1,195,111,007,842.94/1,223,815.36
  6. Step 6: Final answer
    x = 976,545.19

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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.