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Finding the Fourth Proportional to 514,018.94, 709,668.12 and 330,332

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Solution

The fourth proportional to 514,018.94, 709,668.12 and 330,332 is: 456,065.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,018.94 : 709,668.12 = 330,332 : x
  2. Step 2: Convert to fraction form
    514,018.94/709,668.12 = 330,332/x
  3. Step 3: Cross multiply
    514,018.94x = 709,668.12 × 330,332
  4. Step 4: Simplify right side
    514,018.94x = 234,426,089,415.84
  5. Step 5: Solve for x
    x = 234,426,089,415.84/514,018.94
  6. Step 6: Final answer
    x = 456,065.08

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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.