Home / 771,533.12-1,064,678.72-427,345.83

Finding the Fourth Proportional to 771,533.12, 1,064,678.72 and 427,345.83

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Solution

The fourth proportional to 771,533.12, 1,064,678.72 and 427,345.83 is: 589,716.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,533.12 : 1,064,678.72 = 427,345.83 : x
  2. Step 2: Convert to fraction form
    771,533.12/1,064,678.72 = 427,345.83/x
  3. Step 3: Cross multiply
    771,533.12x = 1,064,678.72 × 427,345.83
  4. Step 4: Simplify right side
    771,533.12x = 454,986,009,145.01
  5. Step 5: Solve for x
    x = 454,986,009,145.01/771,533.12
  6. Step 6: Final answer
    x = 589,716.75

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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.