Home / 829,140.12-1,143,807.48-506,291.55

Finding the Fourth Proportional to 829,140.12, 1,143,807.48 and 506,291.55

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Solution

The fourth proportional to 829,140.12, 1,143,807.48 and 506,291.55 is: 698,434.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,140.12 : 1,143,807.48 = 506,291.55 : x
  2. Step 2: Convert to fraction form
    829,140.12/1,143,807.48 = 506,291.55/x
  3. Step 3: Cross multiply
    829,140.12x = 1,143,807.48 × 506,291.55
  4. Step 4: Simplify right side
    829,140.12x = 579,100,061,950.79
  5. Step 5: Solve for x
    x = 579,100,061,950.79/829,140.12
  6. Step 6: Final answer
    x = 698,434.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.