Home / 688,356.08-949,165.64-470,600.33

Finding the Fourth Proportional to 688,356.08, 949,165.64 and 470,600.33

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Solution

The fourth proportional to 688,356.08, 949,165.64 and 470,600.33 is: 648,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,356.08 : 949,165.64 = 470,600.33 : x
  2. Step 2: Convert to fraction form
    688,356.08/949,165.64 = 470,600.33/x
  3. Step 3: Cross multiply
    688,356.08x = 949,165.64 × 470,600.33
  4. Step 4: Simplify right side
    688,356.08x = 446,677,663,428.57
  5. Step 5: Solve for x
    x = 446,677,663,428.57/688,356.08
  6. Step 6: Final answer
    x = 648,904.95

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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.