Home / 401,501.90-553,588.08-346,956.50

Finding the Fourth Proportional to 401,501.90, 553,588.08 and 346,956.50

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Solution

The fourth proportional to 401,501.90, 553,588.08 and 346,956.50 is: 478,381.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,501.90 : 553,588.08 = 346,956.50 : x
  2. Step 2: Convert to fraction form
    401,501.90/553,588.08 = 346,956.50/x
  3. Step 3: Cross multiply
    401,501.90x = 553,588.08 × 346,956.50
  4. Step 4: Simplify right side
    401,501.90x = 192,070,982,678.52
  5. Step 5: Solve for x
    x = 192,070,982,678.52/401,501.90
  6. Step 6: Final answer
    x = 478,381.25

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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.