Home / 781,452.60-1,077,370.80-563,478.90

Finding the Fourth Proportional to 781,452.60, 1,077,370.80 and 563,478.90

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Solution

The fourth proportional to 781,452.60, 1,077,370.80 and 563,478.90 is: 776,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,452.60 : 1,077,370.80 = 563,478.90 : x
  2. Step 2: Convert to fraction form
    781,452.60/1,077,370.80 = 563,478.90/x
  3. Step 3: Cross multiply
    781,452.60x = 1,077,370.80 × 563,478.90
  4. Step 4: Simplify right side
    781,452.60x = 607,075,713,276.12
  5. Step 5: Solve for x
    x = 607,075,713,276.12/781,452.60
  6. Step 6: Final answer
    x = 776,855.45

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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.