Home / 830,434.73-1,145,999.90-448,461.47

Finding the Fourth Proportional to 830,434.73, 1,145,999.90 and 448,461.47

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Solution

The fourth proportional to 830,434.73, 1,145,999.90 and 448,461.47 is: 618,876.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,434.73 : 1,145,999.90 = 448,461.47 : x
  2. Step 2: Convert to fraction form
    830,434.73/1,145,999.90 = 448,461.47/x
  3. Step 3: Cross multiply
    830,434.73x = 1,145,999.90 × 448,461.47
  4. Step 4: Simplify right side
    830,434.73x = 513,936,803,760.01
  5. Step 5: Solve for x
    x = 513,936,803,760.01/830,434.73
  6. Step 6: Final answer
    x = 618,876.82

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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.