Home / 730,730.08-1,008,428.75-399,605.48

Finding the Fourth Proportional to 730,730.08, 1,008,428.75 and 399,605.48

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Solution

The fourth proportional to 730,730.08, 1,008,428.75 and 399,605.48 is: 551,467.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,730.08 : 1,008,428.75 = 399,605.48 : x
  2. Step 2: Convert to fraction form
    730,730.08/1,008,428.75 = 399,605.48/x
  3. Step 3: Cross multiply
    730,730.08x = 1,008,428.75 × 399,605.48
  4. Step 4: Simplify right side
    730,730.08x = 402,973,650,646.42
  5. Step 5: Solve for x
    x = 402,973,650,646.42/730,730.08
  6. Step 6: Final answer
    x = 551,467.17

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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.