Home / 557,307.04-769,089.36-302,663.20

Finding the Fourth Proportional to 557,307.04, 769,089.36 and 302,663.20

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Solution

The fourth proportional to 557,307.04, 769,089.36 and 302,663.20 is: 417,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,307.04 : 769,089.36 = 302,663.20 : x
  2. Step 2: Convert to fraction form
    557,307.04/769,089.36 = 302,663.20/x
  3. Step 3: Cross multiply
    557,307.04x = 769,089.36 × 302,663.20
  4. Step 4: Simplify right side
    557,307.04x = 232,775,046,783.55
  5. Step 5: Solve for x
    x = 232,775,046,783.55/557,307.04
  6. Step 6: Final answer
    x = 417,678.28

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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.