Home / 1,947,868.71-2,688,325.85-1,120,925.28

Finding the Fourth Proportional to 1,947,868.71, 2,688,325.85 and 1,120,925.28

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Solution

The fourth proportional to 1,947,868.71, 2,688,325.85 and 1,120,925.28 is: 1,547,030.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,868.71 : 2,688,325.85 = 1,120,925.28 : x
  2. Step 2: Convert to fraction form
    1,947,868.71/2,688,325.85 = 1,120,925.28/x
  3. Step 3: Cross multiply
    1,947,868.71x = 2,688,325.85 × 1,120,925.28
  4. Step 4: Simplify right side
    1,947,868.71x = 3,013,412,400,537.86
  5. Step 5: Solve for x
    x = 3,013,412,400,537.86/1,947,868.71
  6. Step 6: Final answer
    x = 1,547,030.55

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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.