Finding the Fourth Proportional to 877,779.13, 1,316,669.23 and 212,931.13
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Solution
The fourth proportional to 877,779.13, 1,316,669.23 and 212,931.13 is: 319,396.82
Step by Step Solution
- Step 1: Write the proportion equation
877,779.13 : 1,316,669.23 = 212,931.13 : x - Step 2: Convert to fraction form
877,779.13/1,316,669.23 = 212,931.13/x - Step 3: Cross multiply
877,779.13x = 1,316,669.23 × 212,931.13 - Step 4: Simplify right side
877,779.13x = 280,359,866,980.13 - Step 5: Solve for x
x = 280,359,866,980.13/877,779.13 - Step 6: Final answer
x = 319,396.82
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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.