Home / 911,904.84-1,258,389.52-503,985.60

Finding the Fourth Proportional to 911,904.84, 1,258,389.52 and 503,985.60

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Solution

The fourth proportional to 911,904.84, 1,258,389.52 and 503,985.60 is: 695,478.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,904.84 : 1,258,389.52 = 503,985.60 : x
  2. Step 2: Convert to fraction form
    911,904.84/1,258,389.52 = 503,985.60/x
  3. Step 3: Cross multiply
    911,904.84x = 1,258,389.52 × 503,985.60
  4. Step 4: Simplify right side
    911,904.84x = 634,210,197,270.91
  5. Step 5: Solve for x
    x = 634,210,197,270.91/911,904.84
  6. Step 6: Final answer
    x = 695,478.49

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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.