Home / 779,168.64-1,075,253.12-421,472.64

Finding the Fourth Proportional to 779,168.64, 1,075,253.12 and 421,472.64

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Solution

The fourth proportional to 779,168.64, 1,075,253.12 and 421,472.64 is: 581,632.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,168.64 : 1,075,253.12 = 421,472.64 : x
  2. Step 2: Convert to fraction form
    779,168.64/1,075,253.12 = 421,472.64/x
  3. Step 3: Cross multiply
    779,168.64x = 1,075,253.12 × 421,472.64
  4. Step 4: Simplify right side
    779,168.64x = 453,189,771,154.64
  5. Step 5: Solve for x
    x = 453,189,771,154.64/779,168.64
  6. Step 6: Final answer
    x = 581,632.46

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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.