Home / 830,435.85-1,146,001.47-448,462.61

Finding the Fourth Proportional to 830,435.85, 1,146,001.47 and 448,462.61

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Solution

The fourth proportional to 830,435.85, 1,146,001.47 and 448,462.61 is: 618,878.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,435.85 : 1,146,001.47 = 448,462.61 : x
  2. Step 2: Convert to fraction form
    830,435.85/1,146,001.47 = 448,462.61/x
  3. Step 3: Cross multiply
    830,435.85x = 1,146,001.47 × 448,462.61
  4. Step 4: Simplify right side
    830,435.85x = 513,938,810,300.04
  5. Step 5: Solve for x
    x = 513,938,810,300.04/830,435.85
  6. Step 6: Final answer
    x = 618,878.40

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Double scale
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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.