Home / 549,931.22-758,904.05-308,213.72

Finding the Fourth Proportional to 549,931.22, 758,904.05 and 308,213.72

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Solution

The fourth proportional to 549,931.22, 758,904.05 and 308,213.72 is: 425,334.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,931.22 : 758,904.05 = 308,213.72 : x
  2. Step 2: Convert to fraction form
    549,931.22/758,904.05 = 308,213.72/x
  3. Step 3: Cross multiply
    549,931.22x = 758,904.05 × 308,213.72
  4. Step 4: Simplify right side
    549,931.22x = 233,904,637,349.58
  5. Step 5: Solve for x
    x = 233,904,637,349.58/549,931.22
  6. Step 6: Final answer
    x = 425,334.35

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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.