Home / 830,661.81-1,146,313.71-448,688.58

Finding the Fourth Proportional to 830,661.81, 1,146,313.71 and 448,688.58

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Solution

The fourth proportional to 830,661.81, 1,146,313.71 and 448,688.58 is: 619,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,661.81 : 1,146,313.71 = 448,688.58 : x
  2. Step 2: Convert to fraction form
    830,661.81/1,146,313.71 = 448,688.58/x
  3. Step 3: Cross multiply
    830,661.81x = 1,146,313.71 × 448,688.58
  4. Step 4: Simplify right side
    830,661.81x = 514,337,870,774.43
  5. Step 5: Solve for x
    x = 514,337,870,774.43/830,661.81
  6. Step 6: Final answer
    x = 619,190.46

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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.