Home / 525,116.90-788,258.55-288,920.90

Finding the Fourth Proportional to 525,116.90, 788,258.55 and 288,920.90

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Solution

The fourth proportional to 525,116.90, 788,258.55 and 288,920.90 is: 433,702.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,116.90 : 788,258.55 = 288,920.90 : x
  2. Step 2: Convert to fraction form
    525,116.90/788,258.55 = 288,920.90/x
  3. Step 3: Cross multiply
    525,116.90x = 788,258.55 × 288,920.90
  4. Step 4: Simplify right side
    525,116.90x = 227,744,369,698.70
  5. Step 5: Solve for x
    x = 227,744,369,698.70/525,116.90
  6. Step 6: Final answer
    x = 433,702.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.