Home / 911,900.84-1,258,384.01-503,981.60

Finding the Fourth Proportional to 911,900.84, 1,258,384.01 and 503,981.60

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Solution

The fourth proportional to 911,900.84, 1,258,384.01 and 503,981.60 is: 695,472.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,900.84 : 1,258,384.01 = 503,981.60 : x
  2. Step 2: Convert to fraction form
    911,900.84/1,258,384.01 = 503,981.60/x
  3. Step 3: Cross multiply
    911,900.84x = 1,258,384.01 × 503,981.60
  4. Step 4: Simplify right side
    911,900.84x = 634,202,377,962.39
  5. Step 5: Solve for x
    x = 634,202,377,962.39/911,900.84
  6. Step 6: Final answer
    x = 695,472.97

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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.