Home / 768,117.60-1,151,312.40-368,949.60

Finding the Fourth Proportional to 768,117.60, 1,151,312.40 and 368,949.60

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Solution

The fourth proportional to 768,117.60, 1,151,312.40 and 368,949.60 is: 553,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,117.60 : 1,151,312.40 = 368,949.60 : x
  2. Step 2: Convert to fraction form
    768,117.60/1,151,312.40 = 368,949.60/x
  3. Step 3: Cross multiply
    768,117.60x = 1,151,312.40 × 368,949.60
  4. Step 4: Simplify right side
    768,117.60x = 424,776,249,455.04
  5. Step 5: Solve for x
    x = 424,776,249,455.04/768,117.60
  6. Step 6: Final answer
    x = 553,009.40

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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.