Home / 1,556,176-2,147,522.88-840,784

Finding the Fourth Proportional to 1,556,176, 2,147,522.88 and 840,784

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Solution

The fourth proportional to 1,556,176, 2,147,522.88 and 840,784 is: 1,160,281.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,176 : 2,147,522.88 = 840,784 : x
  2. Step 2: Convert to fraction form
    1,556,176/2,147,522.88 = 840,784/x
  3. Step 3: Cross multiply
    1,556,176x = 2,147,522.88 × 840,784
  4. Step 4: Simplify right side
    1,556,176x = 1,805,602,877,137.92
  5. Step 5: Solve for x
    x = 1,805,602,877,137.92/1,556,176
  6. Step 6: Final answer
    x = 1,160,281.92

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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.