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Finding the Fourth Proportional to 551,599.56, 760,545.09 and 398,392.92

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Solution

The fourth proportional to 551,599.56, 760,545.09 and 398,392.92 is: 549,303.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,599.56 : 760,545.09 = 398,392.92 : x
  2. Step 2: Convert to fraction form
    551,599.56/760,545.09 = 398,392.92/x
  3. Step 3: Cross multiply
    551,599.56x = 760,545.09 × 398,392.92
  4. Step 4: Simplify right side
    551,599.56x = 302,995,779,196.76
  5. Step 5: Solve for x
    x = 302,995,779,196.76/551,599.56
  6. Step 6: Final answer
    x = 549,303.88

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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.