Home / 875,307.60-1,312,961.40-819,320.40

Finding the Fourth Proportional to 875,307.60, 1,312,961.40 and 819,320.40

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Solution

The fourth proportional to 875,307.60, 1,312,961.40 and 819,320.40 is: 1,228,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,307.60 : 1,312,961.40 = 819,320.40 : x
  2. Step 2: Convert to fraction form
    875,307.60/1,312,961.40 = 819,320.40/x
  3. Step 3: Cross multiply
    875,307.60x = 1,312,961.40 × 819,320.40
  4. Step 4: Simplify right side
    875,307.60x = 1,075,736,059,432.56
  5. Step 5: Solve for x
    x = 1,075,736,059,432.56/875,307.60
  6. Step 6: Final answer
    x = 1,228,980.60

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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.