Home / 852,551.90-1,176,521.72-470,578.78

Finding the Fourth Proportional to 852,551.90, 1,176,521.72 and 470,578.78

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Solution

The fourth proportional to 852,551.90, 1,176,521.72 and 470,578.78 is: 649,398.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,551.90 : 1,176,521.72 = 470,578.78 : x
  2. Step 2: Convert to fraction form
    852,551.90/1,176,521.72 = 470,578.78/x
  3. Step 3: Cross multiply
    852,551.90x = 1,176,521.72 × 470,578.78
  4. Step 4: Simplify right side
    852,551.90x = 553,646,155,641.10
  5. Step 5: Solve for x
    x = 553,646,155,641.10/852,551.90
  6. Step 6: Final answer
    x = 649,398.77

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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.