Home / 709,330.02-977,731.65-479,803.47

Finding the Fourth Proportional to 709,330.02, 977,731.65 and 479,803.47

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Solution

The fourth proportional to 709,330.02, 977,731.65 and 479,803.47 is: 661,355.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,330.02 : 977,731.65 = 479,803.47 : x
  2. Step 2: Convert to fraction form
    709,330.02/977,731.65 = 479,803.47/x
  3. Step 3: Cross multiply
    709,330.02x = 977,731.65 × 479,803.47
  4. Step 4: Simplify right side
    709,330.02x = 469,119,038,398.83
  5. Step 5: Solve for x
    x = 469,119,038,398.83/709,330.02
  6. Step 6: Final answer
    x = 661,355.12

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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.