Home / 779,820.40-1,169,730.60-359,916.40

Finding the Fourth Proportional to 779,820.40, 1,169,730.60 and 359,916.40

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Solution

The fourth proportional to 779,820.40, 1,169,730.60 and 359,916.40 is: 539,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,820.40 : 1,169,730.60 = 359,916.40 : x
  2. Step 2: Convert to fraction form
    779,820.40/1,169,730.60 = 359,916.40/x
  3. Step 3: Cross multiply
    779,820.40x = 1,169,730.60 × 359,916.40
  4. Step 4: Simplify right side
    779,820.40x = 421,005,226,521.84
  5. Step 5: Solve for x
    x = 421,005,226,521.84/779,820.40
  6. Step 6: Final answer
    x = 539,874.60

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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.