Home / 688,409.32-1,032,844.38-351,303.40

Finding the Fourth Proportional to 688,409.32, 1,032,844.38 and 351,303.40

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Solution

The fourth proportional to 688,409.32, 1,032,844.38 and 351,303.40 is: 527,072.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,409.32 : 1,032,844.38 = 351,303.40 : x
  2. Step 2: Convert to fraction form
    688,409.32/1,032,844.38 = 351,303.40/x
  3. Step 3: Cross multiply
    688,409.32x = 1,032,844.38 × 351,303.40
  4. Step 4: Simplify right side
    688,409.32x = 362,841,742,364.89
  5. Step 5: Solve for x
    x = 362,841,742,364.89/688,409.32
  6. Step 6: Final answer
    x = 527,072.68

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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.