Home / 688,633.10-1,032,949.65-611,869.40

Finding the Fourth Proportional to 688,633.10, 1,032,949.65 and 611,869.40

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Solution

The fourth proportional to 688,633.10, 1,032,949.65 and 611,869.40 is: 917,804.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,633.10 : 1,032,949.65 = 611,869.40 : x
  2. Step 2: Convert to fraction form
    688,633.10/1,032,949.65 = 611,869.40/x
  3. Step 3: Cross multiply
    688,633.10x = 1,032,949.65 × 611,869.40
  4. Step 4: Simplify right side
    688,633.10x = 632,030,282,575.71
  5. Step 5: Solve for x
    x = 632,030,282,575.71/688,633.10
  6. Step 6: Final answer
    x = 917,804.10

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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.