Home / 938,421.90-1,295,023.95-508,700.70

Finding the Fourth Proportional to 938,421.90, 1,295,023.95 and 508,700.70

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Solution

The fourth proportional to 938,421.90, 1,295,023.95 and 508,700.70 is: 702,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,421.90 : 1,295,023.95 = 508,700.70 : x
  2. Step 2: Convert to fraction form
    938,421.90/1,295,023.95 = 508,700.70/x
  3. Step 3: Cross multiply
    938,421.90x = 1,295,023.95 × 508,700.70
  4. Step 4: Simplify right side
    938,421.90x = 658,779,589,881.77
  5. Step 5: Solve for x
    x = 658,779,589,881.77/938,421.90
  6. Step 6: Final answer
    x = 702,007.90

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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.