Home / 830,461.10-1,146,036.28-448,487.85

Finding the Fourth Proportional to 830,461.10, 1,146,036.28 and 448,487.85

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Solution

The fourth proportional to 830,461.10, 1,146,036.28 and 448,487.85 is: 618,913.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,461.10 : 1,146,036.28 = 448,487.85 : x
  2. Step 2: Convert to fraction form
    830,461.10/1,146,036.28 = 448,487.85/x
  3. Step 3: Cross multiply
    830,461.10x = 1,146,036.28 × 448,487.85
  4. Step 4: Simplify right side
    830,461.10x = 513,983,347,239.20
  5. Step 5: Solve for x
    x = 513,983,347,239.20/830,461.10
  6. Step 6: Final answer
    x = 618,913.21

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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.