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Finding the Fourth Proportional to 514,587.63, 710,477.53 and 321,289.64

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Solution

The fourth proportional to 514,587.63, 710,477.53 and 321,289.64 is: 443,596.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,587.63 : 710,477.53 = 321,289.64 : x
  2. Step 2: Convert to fraction form
    514,587.63/710,477.53 = 321,289.64/x
  3. Step 3: Cross multiply
    514,587.63x = 710,477.53 × 321,289.64
  4. Step 4: Simplify right side
    514,587.63x = 228,269,068,150.47
  5. Step 5: Solve for x
    x = 228,269,068,150.47/514,587.63
  6. Step 6: Final answer
    x = 443,596.10

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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.