Home / 1,070,140.60-1,605,210.90-438,729.40

Finding the Fourth Proportional to 1,070,140.60, 1,605,210.90 and 438,729.40

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Solution

The fourth proportional to 1,070,140.60, 1,605,210.90 and 438,729.40 is: 658,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,140.60 : 1,605,210.90 = 438,729.40 : x
  2. Step 2: Convert to fraction form
    1,070,140.60/1,605,210.90 = 438,729.40/x
  3. Step 3: Cross multiply
    1,070,140.60x = 1,605,210.90 × 438,729.40
  4. Step 4: Simplify right side
    1,070,140.60x = 704,253,215,030.46
  5. Step 5: Solve for x
    x = 704,253,215,030.46/1,070,140.60
  6. Step 6: Final answer
    x = 658,094.10

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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.