Home / 877,460.40-1,313,566.20-522,291.60

Finding the Fourth Proportional to 877,460.40, 1,313,566.20 and 522,291.60

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Solution

The fourth proportional to 877,460.40, 1,313,566.20 and 522,291.60 is: 781,875.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,460.40 : 1,313,566.20 = 522,291.60 : x
  2. Step 2: Convert to fraction form
    877,460.40/1,313,566.20 = 522,291.60/x
  3. Step 3: Cross multiply
    877,460.40x = 1,313,566.20 × 522,291.60
  4. Step 4: Simplify right side
    877,460.40x = 686,064,592,303.92
  5. Step 5: Solve for x
    x = 686,064,592,303.92/877,460.40
  6. Step 6: Final answer
    x = 781,875.28

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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.