Home / 474,328.02-654,467.76-290,605.40

Finding the Fourth Proportional to 474,328.02, 654,467.76 and 290,605.40

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Solution

The fourth proportional to 474,328.02, 654,467.76 and 290,605.40 is: 400,971.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,328.02 : 654,467.76 = 290,605.40 : x
  2. Step 2: Convert to fraction form
    474,328.02/654,467.76 = 290,605.40/x
  3. Step 3: Cross multiply
    474,328.02x = 654,467.76 × 290,605.40
  4. Step 4: Simplify right side
    474,328.02x = 190,191,861,909.57
  5. Step 5: Solve for x
    x = 190,191,861,909.57/474,328.02
  6. Step 6: Final answer
    x = 400,971.17

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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.