Home / 528,077.10-789,811.65-472,320.30

Finding the Fourth Proportional to 528,077.10, 789,811.65 and 472,320.30

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Solution

The fourth proportional to 528,077.10, 789,811.65 and 472,320.30 is: 706,419.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,077.10 : 789,811.65 = 472,320.30 : x
  2. Step 2: Convert to fraction form
    528,077.10/789,811.65 = 472,320.30/x
  3. Step 3: Cross multiply
    528,077.10x = 789,811.65 × 472,320.30
  4. Step 4: Simplify right side
    528,077.10x = 373,044,075,471.50
  5. Step 5: Solve for x
    x = 373,044,075,471.50/528,077.10
  6. Step 6: Final answer
    x = 706,419.72

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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.