Home / 730,668.57-1,008,290.93-399,518.46

Finding the Fourth Proportional to 730,668.57, 1,008,290.93 and 399,518.46

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Solution

The fourth proportional to 730,668.57, 1,008,290.93 and 399,518.46 is: 551,318.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,668.57 : 1,008,290.93 = 399,518.46 : x
  2. Step 2: Convert to fraction form
    730,668.57/1,008,290.93 = 399,518.46/x
  3. Step 3: Cross multiply
    730,668.57x = 1,008,290.93 × 399,518.46
  4. Step 4: Simplify right side
    730,668.57x = 402,830,837,587.98
  5. Step 5: Solve for x
    x = 402,830,837,587.98/730,668.57
  6. Step 6: Final answer
    x = 551,318.14

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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.