Home / 571,031.80-856,547.70-359,985.40

Finding the Fourth Proportional to 571,031.80, 856,547.70 and 359,985.40

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Solution

The fourth proportional to 571,031.80, 856,547.70 and 359,985.40 is: 539,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,031.80 : 856,547.70 = 359,985.40 : x
  2. Step 2: Convert to fraction form
    571,031.80/856,547.70 = 359,985.40/x
  3. Step 3: Cross multiply
    571,031.80x = 856,547.70 × 359,985.40
  4. Step 4: Simplify right side
    571,031.80x = 308,344,666,403.58
  5. Step 5: Solve for x
    x = 308,344,666,403.58/571,031.80
  6. Step 6: Final answer
    x = 539,978.10

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Similar ratio
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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.