Finding the Fourth Proportional to 1,778,579.91, 2,667,860.93 and 430,742.47
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Solution
The fourth proportional to 1,778,579.91, 2,667,860.93 and 430,742.47 is: 646,111.54
Step by Step Solution
- Step 1: Write the proportion equation
1,778,579.91 : 2,667,860.93 = 430,742.47 : x - Step 2: Convert to fraction form
1,778,579.91/2,667,860.93 = 430,742.47/x - Step 3: Cross multiply
1,778,579.91x = 2,667,860.93 × 430,742.47 - Step 4: Simplify right side
1,778,579.91x = 1,149,161,007,681.55 - Step 5: Solve for x
x = 1,149,161,007,681.55/1,778,579.91 - Step 6: Final answer
x = 646,111.54
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.