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Finding the Fourth Proportional to 556,023.78, 767,313.63 and 301,374.90

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Solution

The fourth proportional to 556,023.78, 767,313.63 and 301,374.90 is: 415,897.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,023.78 : 767,313.63 = 301,374.90 : x
  2. Step 2: Convert to fraction form
    556,023.78/767,313.63 = 301,374.90/x
  3. Step 3: Cross multiply
    556,023.78x = 767,313.63 × 301,374.90
  4. Step 4: Simplify right side
    556,023.78x = 231,249,068,509.89
  5. Step 5: Solve for x
    x = 231,249,068,509.89/556,023.78
  6. Step 6: Final answer
    x = 415,897.80

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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.