Home / 829,988.78-1,145,368.96-507,675.20

Finding the Fourth Proportional to 829,988.78, 1,145,368.96 and 507,675.20

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Solution

The fourth proportional to 829,988.78, 1,145,368.96 and 507,675.20 is: 700,582.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,988.78 : 1,145,368.96 = 507,675.20 : x
  2. Step 2: Convert to fraction form
    829,988.78/1,145,368.96 = 507,675.20/x
  3. Step 3: Cross multiply
    829,988.78x = 1,145,368.96 × 507,675.20
  4. Step 4: Simplify right side
    829,988.78x = 581,475,408,845.76
  5. Step 5: Solve for x
    x = 581,475,408,845.76/829,988.78
  6. Step 6: Final answer
    x = 700,582.26

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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.