Home / 756,429.40-1,133,261.70-615,424.60

Finding the Fourth Proportional to 756,429.40, 1,133,261.70 and 615,424.60

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Solution

The fourth proportional to 756,429.40, 1,133,261.70 and 615,424.60 is: 922,012.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,429.40 : 1,133,261.70 = 615,424.60 : x
  2. Step 2: Convert to fraction form
    756,429.40/1,133,261.70 = 615,424.60/x
  3. Step 3: Cross multiply
    756,429.40x = 1,133,261.70 × 615,424.60
  4. Step 4: Simplify right side
    756,429.40x = 697,437,128,417.82
  5. Step 5: Solve for x
    x = 697,437,128,417.82/756,429.40
  6. Step 6: Final answer
    x = 922,012.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.