Home / 830,124.69-1,145,574.45-481,332.66

Finding the Fourth Proportional to 830,124.69, 1,145,574.45 and 481,332.66

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Solution

The fourth proportional to 830,124.69, 1,145,574.45 and 481,332.66 is: 664,240.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,124.69 : 1,145,574.45 = 481,332.66 : x
  2. Step 2: Convert to fraction form
    830,124.69/1,145,574.45 = 481,332.66/x
  3. Step 3: Cross multiply
    830,124.69x = 1,145,574.45 × 481,332.66
  4. Step 4: Simplify right side
    830,124.69x = 551,402,397,246.54
  5. Step 5: Solve for x
    x = 551,402,397,246.54/830,124.69
  6. Step 6: Final answer
    x = 664,240.45

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Half scale
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Double scale
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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.