Home / 875,006.40-1,312,801.20-780,938.40

Finding the Fourth Proportional to 875,006.40, 1,312,801.20 and 780,938.40

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Solution

The fourth proportional to 875,006.40, 1,312,801.20 and 780,938.40 is: 1,171,667.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,006.40 : 1,312,801.20 = 780,938.40 : x
  2. Step 2: Convert to fraction form
    875,006.40/1,312,801.20 = 780,938.40/x
  3. Step 3: Cross multiply
    875,006.40x = 1,312,801.20 × 780,938.40
  4. Step 4: Simplify right side
    875,006.40x = 1,025,216,868,646.08
  5. Step 5: Solve for x
    x = 1,025,216,868,646.08/875,006.40
  6. Step 6: Final answer
    x = 1,171,667.85

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1.5x scale

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.