Home / 470,276.28-648,985.95-255,420.54

Finding the Fourth Proportional to 470,276.28, 648,985.95 and 255,420.54

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Solution

The fourth proportional to 470,276.28, 648,985.95 and 255,420.54 is: 352,482.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,276.28 : 648,985.95 = 255,420.54 : x
  2. Step 2: Convert to fraction form
    470,276.28/648,985.95 = 255,420.54/x
  3. Step 3: Cross multiply
    470,276.28x = 648,985.95 × 255,420.54
  4. Step 4: Simplify right side
    470,276.28x = 165,764,341,801.41
  5. Step 5: Solve for x
    x = 165,764,341,801.41/470,276.28
  6. Step 6: Final answer
    x = 352,482.89

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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.