Home / 1,021,051.18-1,531,681.53-390,495.34

Finding the Fourth Proportional to 1,021,051.18, 1,531,681.53 and 390,495.34

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Solution

The fourth proportional to 1,021,051.18, 1,531,681.53 and 390,495.34 is: 585,783.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,051.18 : 1,531,681.53 = 390,495.34 : x
  2. Step 2: Convert to fraction form
    1,021,051.18/1,531,681.53 = 390,495.34/x
  3. Step 3: Cross multiply
    1,021,051.18x = 1,531,681.53 × 390,495.34
  4. Step 4: Simplify right side
    1,021,051.18x = 598,114,499,829.07
  5. Step 5: Solve for x
    x = 598,114,499,829.07/1,021,051.18
  6. Step 6: Final answer
    x = 585,783.07

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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.