Finding the Fourth Proportional to 936,139.68, 1,291,873.05 and 506,420.51
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Solution
The fourth proportional to 936,139.68, 1,291,873.05 and 506,420.51 is: 698,860.45
Step by Step Solution
- Step 1: Write the proportion equation
936,139.68 : 1,291,873.05 = 506,420.51 : x - Step 2: Convert to fraction form
936,139.68/1,291,873.05 = 506,420.51/x - Step 3: Cross multiply
936,139.68x = 1,291,873.05 × 506,420.51 - Step 4: Simplify right side
936,139.68x = 654,231,002,376.89 - Step 5: Solve for x
x = 654,231,002,376.89/936,139.68 - Step 6: Final answer
x = 698,860.45
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.