Home / 549,341.16-758,112.40-307,621.60

Finding the Fourth Proportional to 549,341.16, 758,112.40 and 307,621.60

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Solution

The fourth proportional to 549,341.16, 758,112.40 and 307,621.60 is: 424,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,341.16 : 758,112.40 = 307,621.60 : x
  2. Step 2: Convert to fraction form
    549,341.16/758,112.40 = 307,621.60/x
  3. Step 3: Cross multiply
    549,341.16x = 758,112.40 × 307,621.60
  4. Step 4: Simplify right side
    549,341.16x = 233,211,749,467.84
  5. Step 5: Solve for x
    x = 233,211,749,467.84/549,341.16
  6. Step 6: Final answer
    x = 424,529.90

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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.