Home / 771,585.84-1,064,742.93-422,656.83

Finding the Fourth Proportional to 771,585.84, 1,064,742.93 and 422,656.83

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Solution

The fourth proportional to 771,585.84, 1,064,742.93 and 422,656.83 is: 583,241.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,585.84 : 1,064,742.93 = 422,656.83 : x
  2. Step 2: Convert to fraction form
    771,585.84/1,064,742.93 = 422,656.83/x
  3. Step 3: Cross multiply
    771,585.84x = 1,064,742.93 × 422,656.83
  4. Step 4: Simplify right side
    771,585.84x = 450,020,871,558.71
  5. Step 5: Solve for x
    x = 450,020,871,558.71/771,585.84
  6. Step 6: Final answer
    x = 583,241.49

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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.