Home / 760,181.76-1,049,060.16-420,681.60

Finding the Fourth Proportional to 760,181.76, 1,049,060.16 and 420,681.60

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Solution

The fourth proportional to 760,181.76, 1,049,060.16 and 420,681.60 is: 580,545.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,181.76 : 1,049,060.16 = 420,681.60 : x
  2. Step 2: Convert to fraction form
    760,181.76/1,049,060.16 = 420,681.60/x
  3. Step 3: Cross multiply
    760,181.76x = 1,049,060.16 × 420,681.60
  4. Step 4: Simplify right side
    760,181.76x = 441,320,306,605.06
  5. Step 5: Solve for x
    x = 441,320,306,605.06/760,181.76
  6. Step 6: Final answer
    x = 580,545.77

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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.