Home / 840,348.16-1,260,840.72-503,630.47

Finding the Fourth Proportional to 840,348.16, 1,260,840.72 and 503,630.47

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Solution

The fourth proportional to 840,348.16, 1,260,840.72 and 503,630.47 is: 755,636.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,348.16 : 1,260,840.72 = 503,630.47 : x
  2. Step 2: Convert to fraction form
    840,348.16/1,260,840.72 = 503,630.47/x
  3. Step 3: Cross multiply
    840,348.16x = 1,260,840.72 × 503,630.47
  4. Step 4: Simplify right side
    840,348.16x = 634,997,807,873.40
  5. Step 5: Solve for x
    x = 634,997,807,873.40/840,348.16
  6. Step 6: Final answer
    x = 755,636.58

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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.