Home / 830,713.81-1,146,386.08-448,740.59

Finding the Fourth Proportional to 830,713.81, 1,146,386.08 and 448,740.59

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Solution

The fourth proportional to 830,713.81, 1,146,386.08 and 448,740.59 is: 619,262.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,713.81 : 1,146,386.08 = 448,740.59 : x
  2. Step 2: Convert to fraction form
    830,713.81/1,146,386.08 = 448,740.59/x
  3. Step 3: Cross multiply
    830,713.81x = 1,146,386.08 × 448,740.59
  4. Step 4: Simplify right side
    830,713.81x = 514,429,965,906.99
  5. Step 5: Solve for x
    x = 514,429,965,906.99/830,713.81
  6. Step 6: Final answer
    x = 619,262.57

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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.