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Finding the Fourth Proportional to 549,666.18, 758,619.47 and 307,965.12

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Solution

The fourth proportional to 549,666.18, 758,619.47 and 307,965.12 is: 425,036.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,666.18 : 758,619.47 = 307,965.12 : x
  2. Step 2: Convert to fraction form
    549,666.18/758,619.47 = 307,965.12/x
  3. Step 3: Cross multiply
    549,666.18x = 758,619.47 × 307,965.12
  4. Step 4: Simplify right side
    549,666.18x = 233,628,334,573.06
  5. Step 5: Solve for x
    x = 233,628,334,573.06/549,666.18
  6. Step 6: Final answer
    x = 425,036.76

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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.