Home / 909,939.17-1,255,712.52-502,066.40

Finding the Fourth Proportional to 909,939.17, 1,255,712.52 and 502,066.40

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Solution

The fourth proportional to 909,939.17, 1,255,712.52 and 502,066.40 is: 692,849.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,939.17 : 1,255,712.52 = 502,066.40 : x
  2. Step 2: Convert to fraction form
    909,939.17/1,255,712.52 = 502,066.40/x
  3. Step 3: Cross multiply
    909,939.17x = 1,255,712.52 × 502,066.40
  4. Step 4: Simplify right side
    909,939.17x = 630,451,067,018.90
  5. Step 5: Solve for x
    x = 630,451,067,018.90/909,939.17
  6. Step 6: Final answer
    x = 692,849.69

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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.