Home / 992,969.47-1,370,228.56-563,318.74

Finding the Fourth Proportional to 992,969.47, 1,370,228.56 and 563,318.74

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Solution

The fourth proportional to 992,969.47, 1,370,228.56 and 563,318.74 is: 777,340.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,969.47 : 1,370,228.56 = 563,318.74 : x
  2. Step 2: Convert to fraction form
    992,969.47/1,370,228.56 = 563,318.74/x
  3. Step 3: Cross multiply
    992,969.47x = 1,370,228.56 × 563,318.74
  4. Step 4: Simplify right side
    992,969.47x = 771,875,425,931.22
  5. Step 5: Solve for x
    x = 771,875,425,931.22/992,969.47
  6. Step 6: Final answer
    x = 777,340.54

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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.