Home / 830,434.17-1,145,999.13-448,460.91

Finding the Fourth Proportional to 830,434.17, 1,145,999.13 and 448,460.91

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Solution

The fourth proportional to 830,434.17, 1,145,999.13 and 448,460.91 is: 618,876.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,434.17 : 1,145,999.13 = 448,460.91 : x
  2. Step 2: Convert to fraction form
    830,434.17/1,145,999.13 = 448,460.91/x
  3. Step 3: Cross multiply
    830,434.17x = 1,145,999.13 × 448,460.91
  4. Step 4: Simplify right side
    830,434.17x = 513,935,812,699.01
  5. Step 5: Solve for x
    x = 513,935,812,699.01/830,434.17
  6. Step 6: Final answer
    x = 618,876.04

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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.