Home / 830,436.17-1,146,001.89-448,462.91

Finding the Fourth Proportional to 830,436.17, 1,146,001.89 and 448,462.91

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Solution

The fourth proportional to 830,436.17, 1,146,001.89 and 448,462.91 is: 618,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,436.17 : 1,146,001.89 = 448,462.91 : x
  2. Step 2: Convert to fraction form
    830,436.17/1,146,001.89 = 448,462.91/x
  3. Step 3: Cross multiply
    830,436.17x = 1,146,001.89 × 448,462.91
  4. Step 4: Simplify right side
    830,436.17x = 513,939,342,454.90
  5. Step 5: Solve for x
    x = 513,939,342,454.90/830,436.17
  6. Step 6: Final answer
    x = 618,878.80

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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.