Home / 830,435.35-1,146,000.78-448,462.11

Finding the Fourth Proportional to 830,435.35, 1,146,000.78 and 448,462.11

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Solution

The fourth proportional to 830,435.35, 1,146,000.78 and 448,462.11 is: 618,877.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,435.35 : 1,146,000.78 = 448,462.11 : x
  2. Step 2: Convert to fraction form
    830,435.35/1,146,000.78 = 448,462.11/x
  3. Step 3: Cross multiply
    830,435.35x = 1,146,000.78 × 448,462.11
  4. Step 4: Simplify right side
    830,435.35x = 513,937,927,860.45
  5. Step 5: Solve for x
    x = 513,937,927,860.45/830,435.35
  6. Step 6: Final answer
    x = 618,877.71

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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.