Home / 545,423.49-752,426.01-354,367.17

Finding the Fourth Proportional to 545,423.49, 752,426.01 and 354,367.17

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Solution

The fourth proportional to 545,423.49, 752,426.01 and 354,367.17 is: 488,858.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,423.49 : 752,426.01 = 354,367.17 : x
  2. Step 2: Convert to fraction form
    545,423.49/752,426.01 = 354,367.17/x
  3. Step 3: Cross multiply
    545,423.49x = 752,426.01 × 354,367.17
  4. Step 4: Simplify right side
    545,423.49x = 266,635,075,798.09
  5. Step 5: Solve for x
    x = 266,635,075,798.09/545,423.49
  6. Step 6: Final answer
    x = 488,858.81

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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.