Finding the Fourth Proportional to 785,215.92, 1,177,830.02 and 430,036.19
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Solution
The fourth proportional to 785,215.92, 1,177,830.02 and 430,036.19 is: 645,057.65
Step by Step Solution
- Step 1: Write the proportion equation
785,215.92 : 1,177,830.02 = 430,036.19 : x - Step 2: Convert to fraction form
785,215.92/1,177,830.02 = 430,036.19/x - Step 3: Cross multiply
785,215.92x = 1,177,830.02 × 430,036.19 - Step 4: Simplify right side
785,215.92x = 506,509,534,268.42 - Step 5: Solve for x
x = 506,509,534,268.42/785,215.92 - Step 6: Final answer
x = 645,057.65
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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.