Home / 830,433.98-1,145,998.88-448,460.72

Finding the Fourth Proportional to 830,433.98, 1,145,998.88 and 448,460.72

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Solution

The fourth proportional to 830,433.98, 1,145,998.88 and 448,460.72 is: 618,875.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,433.98 : 1,145,998.88 = 448,460.72 : x
  2. Step 2: Convert to fraction form
    830,433.98/1,145,998.88 = 448,460.72/x
  3. Step 3: Cross multiply
    830,433.98x = 1,145,998.88 × 448,460.72
  4. Step 4: Simplify right side
    830,433.98x = 513,935,482,843.99
  5. Step 5: Solve for x
    x = 513,935,482,843.99/830,433.98
  6. Step 6: Final answer
    x = 618,875.79

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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.