Home / 877,903.20-1,316,066.40-345,787.20

Finding the Fourth Proportional to 877,903.20, 1,316,066.40 and 345,787.20

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Solution

The fourth proportional to 877,903.20, 1,316,066.40 and 345,787.20 is: 518,370.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,903.20 : 1,316,066.40 = 345,787.20 : x
  2. Step 2: Convert to fraction form
    877,903.20/1,316,066.40 = 345,787.20/x
  3. Step 3: Cross multiply
    877,903.20x = 1,316,066.40 × 345,787.20
  4. Step 4: Simplify right side
    877,903.20x = 455,078,915,470.08
  5. Step 5: Solve for x
    x = 455,078,915,470.08/877,903.20
  6. Step 6: Final answer
    x = 518,370.27

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1.5x scale

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.