Home / 877,132.62-1,210,429.80-489,953.34

Finding the Fourth Proportional to 877,132.62, 1,210,429.80 and 489,953.34

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Solution

The fourth proportional to 877,132.62, 1,210,429.80 and 489,953.34 is: 676,128.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,132.62 : 1,210,429.80 = 489,953.34 : x
  2. Step 2: Convert to fraction form
    877,132.62/1,210,429.80 = 489,953.34/x
  3. Step 3: Cross multiply
    877,132.62x = 1,210,429.80 × 489,953.34
  4. Step 4: Simplify right side
    877,132.62x = 593,054,123,345.53
  5. Step 5: Solve for x
    x = 593,054,123,345.53/877,132.62
  6. Step 6: Final answer
    x = 676,128.23

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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.