Home / 492,746.51-679,971.09-274,943.87

Finding the Fourth Proportional to 492,746.51, 679,971.09 and 274,943.87

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Solution

The fourth proportional to 492,746.51, 679,971.09 and 274,943.87 is: 379,411.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,746.51 : 679,971.09 = 274,943.87 : x
  2. Step 2: Convert to fraction form
    492,746.51/679,971.09 = 274,943.87/x
  3. Step 3: Cross multiply
    492,746.51x = 679,971.09 × 274,943.87
  4. Step 4: Simplify right side
    492,746.51x = 186,953,879,572.86
  5. Step 5: Solve for x
    x = 186,953,879,572.86/492,746.51
  6. Step 6: Final answer
    x = 379,411.88

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1.5x scale

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.