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Finding the Fourth Proportional to 549,718.79, 758,598.69 and 308,011.55

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Solution

The fourth proportional to 549,718.79, 758,598.69 and 308,011.55 is: 425,048.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,718.79 : 758,598.69 = 308,011.55 : x
  2. Step 2: Convert to fraction form
    549,718.79/758,598.69 = 308,011.55/x
  3. Step 3: Cross multiply
    549,718.79x = 758,598.69 × 308,011.55
  4. Step 4: Simplify right side
    549,718.79x = 233,657,154,541.88
  5. Step 5: Solve for x
    x = 233,657,154,541.88/549,718.79
  6. Step 6: Final answer
    x = 425,048.52

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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.