Home / 756,430.40-1,133,263.20-615,425.60

Finding the Fourth Proportional to 756,430.40, 1,133,263.20 and 615,425.60

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Solution

The fourth proportional to 756,430.40, 1,133,263.20 and 615,425.60 is: 922,013.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,430.40 : 1,133,263.20 = 615,425.60 : x
  2. Step 2: Convert to fraction form
    756,430.40/1,133,263.20 = 615,425.60/x
  3. Step 3: Cross multiply
    756,430.40x = 1,133,263.20 × 615,425.60
  4. Step 4: Simplify right side
    756,430.40x = 697,439,184,817.92
  5. Step 5: Solve for x
    x = 697,439,184,817.92/756,430.40
  6. Step 6: Final answer
    x = 922,013.69

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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.