Home / 877,867.95-1,317,355.47-345,319.77

Finding the Fourth Proportional to 877,867.95, 1,317,355.47 and 345,319.77

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Solution

The fourth proportional to 877,867.95, 1,317,355.47 and 345,319.77 is: 518,197.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,867.95 : 1,317,355.47 = 345,319.77 : x
  2. Step 2: Convert to fraction form
    877,867.95/1,317,355.47 = 345,319.77/x
  3. Step 3: Cross multiply
    877,867.95x = 1,317,355.47 × 345,319.77
  4. Step 4: Simplify right side
    877,867.95x = 454,908,887,908.64
  5. Step 5: Solve for x
    x = 454,908,887,908.64/877,867.95
  6. Step 6: Final answer
    x = 518,197.40

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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.