Home / 830,434.41-1,145,999.48-448,461.16

Finding the Fourth Proportional to 830,434.41, 1,145,999.48 and 448,461.16

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Solution

The fourth proportional to 830,434.41, 1,145,999.48 and 448,461.16 is: 618,876.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,434.41 : 1,145,999.48 = 448,461.16 : x
  2. Step 2: Convert to fraction form
    830,434.41/1,145,999.48 = 448,461.16/x
  3. Step 3: Cross multiply
    830,434.41x = 1,145,999.48 × 448,461.16
  4. Step 4: Simplify right side
    830,434.41x = 513,936,256,160.20
  5. Step 5: Solve for x
    x = 513,936,256,160.20/830,434.41
  6. Step 6: Final answer
    x = 618,876.40

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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.