Home / 830,470.13-1,146,048.71-448,496.85

Finding the Fourth Proportional to 830,470.13, 1,146,048.71 and 448,496.85

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Solution

The fourth proportional to 830,470.13, 1,146,048.71 and 448,496.85 is: 618,925.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,470.13 : 1,146,048.71 = 448,496.85 : x
  2. Step 2: Convert to fraction form
    830,470.13/1,146,048.71 = 448,496.85/x
  3. Step 3: Cross multiply
    830,470.13x = 1,146,048.71 × 448,496.85
  4. Step 4: Simplify right side
    830,470.13x = 513,999,234,139.08
  5. Step 5: Solve for x
    x = 513,999,234,139.08/830,470.13
  6. Step 6: Final answer
    x = 618,925.62

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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.