Home / 710,156.40-1,065,234.60-645,874.80

Finding the Fourth Proportional to 710,156.40, 1,065,234.60 and 645,874.80

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Solution

The fourth proportional to 710,156.40, 1,065,234.60 and 645,874.80 is: 968,812.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,156.40 : 1,065,234.60 = 645,874.80 : x
  2. Step 2: Convert to fraction form
    710,156.40/1,065,234.60 = 645,874.80/x
  3. Step 3: Cross multiply
    710,156.40x = 1,065,234.60 × 645,874.80
  4. Step 4: Simplify right side
    710,156.40x = 688,008,184,228.08
  5. Step 5: Solve for x
    x = 688,008,184,228.08/710,156.40
  6. Step 6: Final answer
    x = 968,812.20

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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.