Home / 866,031.40-1,195,075.11-478,824.13

Finding the Fourth Proportional to 866,031.40, 1,195,075.11 and 478,824.13

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Solution

The fourth proportional to 866,031.40, 1,195,075.11 and 478,824.13 is: 660,750.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,031.40 : 1,195,075.11 = 478,824.13 : x
  2. Step 2: Convert to fraction form
    866,031.40/1,195,075.11 = 478,824.13/x
  3. Step 3: Cross multiply
    866,031.40x = 1,195,075.11 × 478,824.13
  4. Step 4: Simplify right side
    866,031.40x = 572,230,799,830.40
  5. Step 5: Solve for x
    x = 572,230,799,830.40/866,031.40
  6. Step 6: Final answer
    x = 660,750.64

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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.