Home / 717,707.19-1,076,771.32-212,281.50

Finding the Fourth Proportional to 717,707.19, 1,076,771.32 and 212,281.50

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Solution

The fourth proportional to 717,707.19, 1,076,771.32 and 212,281.50 is: 318,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,707.19 : 1,076,771.32 = 212,281.50 : x
  2. Step 2: Convert to fraction form
    717,707.19/1,076,771.32 = 212,281.50/x
  3. Step 3: Cross multiply
    717,707.19x = 1,076,771.32 × 212,281.50
  4. Step 4: Simplify right side
    717,707.19x = 228,578,630,966.58
  5. Step 5: Solve for x
    x = 228,578,630,966.58/717,707.19
  6. Step 6: Final answer
    x = 318,484.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.