Home / 549,401.48-758,137.95-307,628.63

Finding the Fourth Proportional to 549,401.48, 758,137.95 and 307,628.63

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Solution

The fourth proportional to 549,401.48, 758,137.95 and 307,628.63 is: 424,507.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,401.48 : 758,137.95 = 307,628.63 : x
  2. Step 2: Convert to fraction form
    549,401.48/758,137.95 = 307,628.63/x
  3. Step 3: Cross multiply
    549,401.48x = 758,137.95 × 307,628.63
  4. Step 4: Simplify right side
    549,401.48x = 233,224,935,118.82
  5. Step 5: Solve for x
    x = 233,224,935,118.82/549,401.48
  6. Step 6: Final answer
    x = 424,507.30

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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.